Linksys Network Router WRVS4400N User Manual
USER GUIDE  
Wireless-N Gigabit Security  
Router with VPN  
BUSINESS SERIES  
with Ports  
4-portuter  
Wireless  
Model No. WRVS4400N  
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Wireless-N Gigabit Security Router with VPN  
Table of Contents  
Chapter 1: Introduction  
Welcome  
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What’s in this Guide?  
Chapter 2: Networking and Security Basics  
An Introduction to LANs  
The Use of IP Addresses  
The Intrusion Prevention System (IPS)  
Chapter 3: Planning Your Virtual Private Network (VPN)  
Why do I need a VPN?  
What is a VPN?  
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Chapter 4: Getting to Know the Router  
The Front Panel  
The Back Panels  
Antennas and Positions  
Chapter 5: Connecting the Router  
Overview  
Connection Instructions  
Placement Options  
Chapter 6: Setting Up and Configuring the Router  
Overview  
Basic Setup  
How to Access the Web-based Utility  
How to Navigate the Utility  
Setup Tab  
Wireless Tab  
Firewall Tab  
VPN Tab  
QoS Tab  
Administration Tab  
IPS Tab  
L2 Switch Tab  
Status Tab  
Appendix A: Troubleshooting  
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Wireless-N Gigabit Security Router with VPN  
Common Problems and Solutions  
Frequently Asked Questions  
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95  
Appendix B: Using the Linksys QuickVPN Software for Windows 2000 or XP 99  
Overview  
Before You Begin  
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Installing the Linksys QuickVPN Software  
Using the Linksys QuickVPN Software  
Appendix C: Configuring a Gateway-to-Gateway IPSec Tunnel  
Overview  
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Before You Begin  
Configuring the VPN Settings for the VPN Routers  
Configuring the Key Management Settings  
Configuring PC 1 and PC 2  
Appendix D: Finding the MAC Address and IP Address for  
Your Ethernet Adapter  
Windows 98 or Me Instructions  
Windows 2000 or XP Instructions  
For the Router’s Web-based Utility  
Appendix E: Glossary  
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Appendix F: Specifications  
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Appendix G: Warranty Information  
Appendix H: Regulatory Information  
Appendix I: Contact Information  
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Wireless-N Gigabit Security Router with VPN  
List of Figures  
Figure 2-1: Example network  
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Figure 2-2: IPS Scenarios  
Figure 3-1: VPN Router to VPN Router  
Figure 3-2: Computer to VPN Router  
Figure 4-1: Front Panel  
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Figure 4-2: Back Panel  
Figure 4-3: Stackable Position and its Antenna Setup  
Figure 4-4: Standalone Position and its Antenna Setup  
Figure 5-1: Example of a Typical Network  
Figure 5-2: Connect a PC  
Figure 5-3: Connect the Internet  
Figure 5-4: Connect the Power  
Figure 5-5: The Stand Option  
Figure 5-6: Stand  
Figure 5-7: Mounting Dimensions  
Figure 5-8: Wall Mounting Hardware  
Figure 6-1: Router’s IP Address  
Figure 6-2: Login Screen for Web-based Utility  
Figure 6-1: Setup - IP Versions  
Figure 6-2: Setup - WAN (DHCP)  
Figure 6-3: Setup - WAN (Static IP)  
Figure 6-4: Setup - WAN (PPPoE)  
Figure 6-5: Setup - WAN (PPTP)  
Figure 6-6: Setup - WAN (Heart Beat Signal)  
Figure 6-7: Setup - WAN (L2TP)  
Figure 6-8: Setup - WAN (Optional Settings)  
Figure 6-9: Setup - WAN (DynDNS.org)  
Figure 6-10: Setup - WAN (TZO.com)  
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Figure 6-11: Setup - LAN  
Figure 6-12: Setup - DMZ  
Figure 6-13: Setup - MAC Address Clone  
Figure 6-14: Setup - Advanced Routing  
Figure 6-15: Setup - Advanced Routing (Routing Table)  
Figure 6-16: Setup - Time  
Figure 6-17: Wireless - Basic Wireless Settings  
Figure 6-18: Wireless - Wireless Security (Disabled)  
Figure 6-19: Wireless - Wireless Security (WPA-Personal)  
Figure 6-20: Wireless - Wireless Security (WPA2-Personal)  
Figure 6-21: Wireless - Wireless Security (WPA2-Personal Mixed)  
Figure 6-22: Wireless - Wireless Security (WPA-Enterprise)  
Figure 6-23: Wireless - Wireless Security (WPA2-Enterprise)  
Figure 6-24: Wireless - Wireless Security (WPA2-Enterprise Mixed)  
Figure 6-25: Wireless - Wireless Security (WEP)  
Figure 6-26: Wireless - Wireless Connection Control  
Figure 6-27: Select MAC Address from Wireless Client List  
Figure 6-28: Wireless - Advanced Wireless Settings  
Figure 6-29: Firewall - Basic Settings  
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Figure 6-30: Firewall - IP Based ACL  
Figure 6-31: Firewall - IP Based ACL (pre-defined services)  
Figure 6-32: Firewall - IP Based ACL (Service definition)  
Figure 6-33: Firewall - Edit IP ACL Rule  
Figure 6-34: Firewall - Internet Access Policy  
Figure 6-35: Firewall - Internet Access Policy Summary  
Figure 6-36: Firewall - Internet Access Policy (List of PCs to apply policy)  
Figure 6-37: Firewall - Single Port Forwarding  
Figure 6-38: Port Range Forwarding  
Figure 6-39: Port Range Triggering  
Figure 6-40: Firewall - Services  
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Wireless-N Gigabit Security Router with VPN  
Figure 6-41: VPN - IPsec VPN  
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Figure 6-42: VPN Tunnel Summary  
Figure 6-43: View VPN Tunnel Log  
Figure 6-44: IPsec VPN Advanced Settings  
Figure 6-45: VPN - VPN Client Accounts  
Figure 6-46: VPN - VPN Passthrough  
Figure 6-47: QoS - Application Based  
Figure 6-48: Port-based  
Figure 6-49: Administration - Management  
Figure 6-50: Administration - Log  
Figure 6-51: View Log pop-up window  
Figure 6-52: Administration - Diagnostics  
Figure 6-53: Ping Test Screen  
Figure 6-54: Trace Route Test Screen  
Figure 6-55: Administration - Config Management  
Figure 6-56: Administration - Factory Default  
Figure 6-57: Administration - Firmware Upgrade  
Figure 6-58: IPS - Configuration  
Figure 6-59: IPS - P2P / IM  
Figure 6-60: IPS - Report  
Figure 6-61: IPS Log Raw Data  
Figure 6-62: IPS - Information  
Figure 6-63: L2 Switch - VLAN  
Figure 6-64: L2 Switch - RADIUS  
Figure 6-65: L2 Switch - RADIUS  
Figure 6-66: L2 Switch - Port Settings  
Figure 6-67: L2 Switch - Cable Diagnostics  
Figure 6-68: Status - WAN / Gateway  
Figure 6-69: Status - LAN  
Figure 6-70: LAN DHCP Client Table  
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Wireless-N Gigabit Security Router with VPN  
Figure 6-71: LAN ARP Table  
Figure 6-72: Status - Wireless LAN  
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Figure 6-73: Status - System Performance  
Figure 6-74: Status - VPN Clients  
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Figure 6-75: Status - IPsec VPN  
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Figure B-1: VPN Client Accounts Screen  
Figure B-2: QuickVPN Desktop Icon  
Figure B-3: QuickVPN Tray Icon - No Connection  
Figure B-4: QuickVPN Software - Profile  
Figure B-5: Connecting  
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Figure B-6: Activating Policy  
Figure B-7: Verifying Network  
Figure B-8: QuickVPN Software - Status  
Figure B-9: QuickVPN Tray Icon - Connection  
Figure B-10: QuickVPN Tray Icon - No Connection  
Figure B-11: QuickVPN Software - Change Password  
Figure C-1: Diagram of Gateway-to-Gateway VPN Tunnel  
Figure C-2: Login Screen  
Figure C-3: VPN - IPsec VPN Configuration  
Figure C-4: Advanced IPsec VPN Tunnel Settings  
Figure C-5: Auto (IKE) Advanced Settings Screen  
Figure D-1: IP Configuration Screen  
Figure D-2: MAC Address/Adapter Address  
Figure D-3: MAC Address/Physical Address  
Figure D-4: MAC Address Clone  
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Wireless-N Gigabit Security Router with VPN  
Chapter 1: Introduction  
Welcome  
Thank you for choosing the Wireless-N Gigabit Security Router with VPN. The Wireless-N Gigabit Security Router  
with VPN is an advanced Internet-sharing network solution for your small business needs. The Router features a  
built-in 4-Port full-duplex 10/100/1000 Ethernet switch to connect four PCs directly, or you can connect more  
hubs and switches to create as big a network as you need. Like any wireless router, it lets multiple computers in  
your office share an Internet connection through both wired and wireless connections. It can also be used as an  
intranet router to aggregate traffic to a company backbone network.  
The Router has a built-in access point that supports the latest 802.11n draft specification by IEEE. It also supports  
802.11g and 802.11b clients in a mixed environment. The access point can support an 11n data rate of up to 300  
Mbps. Besides having a higher data rate, 802.11n technology also promises longer coverage by using multiple  
antennas to transmit and receive data streams in different directions. Users are encouraged to upgrade their  
firmware through www.linksys.com when 802.11n specification is finalized by IEEE to ensure compatibility with  
all the wireless-N devices.  
Ethernet: a network protocol that specifies  
how data is placed on and retrieved from a  
common transmission medium.  
The Wireless-N Gigabit Security Router with VPN is equipped with advanced security technologies like Intrusion  
Prevention System (IPS), Stateful Packet Inspection (SPI) Firewall, IP based Access List (IP ACL), and Network  
Address Port Translation (NAPT, also called NAT as a more generic term). These technologies work together by  
providing self-defensive strategy. Malicious attack traffic is identified, classified, and stopped in real time while  
passing through the Router. Users are encouraged to update their IPS signature file to stay current on stopping  
malicious worms. The SPI Firewall provides deep packet inspection to analyze packets in network layer (IP) and  
transport layer (TCP, UDP) to block illegal packet transactions. Users can also use IP based ACL to limit traffic to a  
specific source, destination and protocol. NAPT allows users to open specific TCP/UDP port numbers to the  
Internet to provide limited service while minimizing harmful traffic at the same time.  
The Virtual Private Network (VPN) capability is another security feature that creates encrypted “tunnels” through  
the Internet, allowing up to five remote offices and five traveling users to securely connect into your office  
network from off-site. Users connecting through a VPN tunnel are attached to your company's network with  
secure access to files, e-mail, and your intranet as if they were in the building. You can also use the VPN  
capability to allow users on your small office network to securely connect out to a corporate network. The QoS  
features provide consistent voice and video quality throughout your business.  
This user guide will give you all the information you need to connect, set up, and configure your Router.  
Chapter 1: Introduction  
Welcome  
1
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Wireless-N Gigabit Security Router with VPN  
What’s in this Guide?  
This user guide covers the steps for setting up and using the Wireless-N Gigabit Security Router with VPN.  
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Chapter 1: Introduction  
This chapter describes the Wireless-N Gigabit Security Router with VPN applications and this User Guide.  
Chapter 2: Networking and Security Basics  
This chapter describes the basics of networking and network security.  
Chapter 3: Planning Your Virtual Private Network (VPN)  
This chapter describes a VPN and its various applications.  
Chapter 4: Getting to Know the Router  
This chapter describes the physical features of the Router.  
Chapter 5: Connecting the Router  
This chapter instructs you on how to connect the Router to your network.  
Chapter 6: Setting Up and Configuring the Router  
This chapter explains how to use the Web-Based Utility to perform basic setup and configure its advanced  
settings.  
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Appendix A: Troubleshooting  
This appendix describes some problems and solutions, as well as frequently asked questions, regarding  
installation and use of the Wireless-N Gigabit Security Router with VPN.  
Appendix B: Using the Linksys QuickVPN Software for Windows 2000 or XP  
This appendix instructs you on how to use the Linksys QuickVPN software if you are using a Windows 2000 or  
XP PC.  
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Appendix C: Configuring a Gateway-to-Gateway IPSec Tunnel  
This appendix describes how to configure an IPSec VPN Tunnel between two VPN Routers.  
Appendix D: Finding the MAC Address and IP Address for your Ethernet Adapter.  
This appendix describes how to find the MAC address for your computer’s Ethernet adapter so you can use  
the MAC filtering and/or MAC address cloning feature of the Router. It also explains how to find the IP address  
for your computer.  
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Appendix E: Glossary  
This appendix gives a brief glossary of terms frequently used in networking.  
Chapter 1: Introduction  
What’s in this Guide?  
2
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Appendix F: Specifications  
This appendix provides the technical specifications for the Router.  
Appendix G: Warranty Information  
This appendix supplies the warranty information for the Router.  
Appendix H: Regulatory Information  
This appendix supplies the regulatory information regarding the Router.  
Appendix I: Contact Information  
This appendix provides contact information for a variety of Linksys resources, including Technical Support.  
Chapter 1: Introduction  
What’s in this Guide?  
3
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Chapter 2: Networking and Security Basics  
An Introduction to LANs  
A Router is a network device that connects multiple networks together and forward traffic based on IP destination  
of each packet.  
The Wireless-N Gigabit Security Router can connect your local area network (LAN) or a group of PCs  
interconnected in your home or office to the Internet. You can use one public IP address from the ISP through  
WAN port and use the router’s Network Address Translation (NAT) technology to share this single IP address  
among all the users.  
NAT (Network Address Translation):  
NAT technology translates IP  
addresses of a local area network to a  
different IP address for the Internet.  
The Router’s Network Address Port Translation (NAPT or NAT) technology protects your network of PCs so users  
on the Internet cannot “see” your PCs. This is how your LAN remains private. The Router protects your network by  
inspecting the first packet coming in through the Internet port before delivery to the final destination on one of  
the Ethernet ports. The Router inspects Internet port services like the web server, ftp server, or other Internet  
applications, and, if allowed, it will forward the packet to the appropriate PC on the LAN side.  
LAN: the computers and networking products that  
make up your local network  
Multiple Wireless-N Gigabit Security Routers can also be used to connect multiple LANs together. This usually  
applies to a medium-sized or larger company where you want to divide your network into multiple IP subnets to  
increase the intranet throughput and reduce the size of the IP broadcast domain and its interference. In this case,  
you need one WRVS4400N for each subnetwork and you can connect all the WAN ports to a second level Router  
or switch to the Internet. Note that the second level Router only forwards data packets through a wired network  
so you don’t have to use the Wireless-N Gigabit Security Router. You can use any wired router in the Linksys  
family, e.g. RVS4000, which has 4 LAN ports and 1 WAN port.  
The following diagram shows an example that consists of two levels of routers and multiple LANs inter-connected  
together. The wireless network is only available at the first level of router to provide end user connections. The  
second level router can connect to dedicated Server PCs or routers that aggregates traffic from different LANs.  
Chapter 2: Networking and Security Basics  
An Introduction to LANs  
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Figure 2-1: Example network  
NOTE: Since the Router is a device that connects two  
networks, it needs two IP addresses—one for the LAN,  
and one for the Internet. In this User Guide, you’ll see  
references to the “Internet IP address” and the “LAN  
IP address.”  
The Use of IP Addresses  
IP stands for Internet Protocol. Every device in an IP-based network, including PCs, print servers, and routers,  
requires an IP address to identify its location, or address, on the network. This applies to both the Internet and  
LAN connections.  
Since the Router uses NAT technology, the only IP  
address that can be seen from the Internet for your  
network is the Router’s Internet IP address. However,  
even this Internet IP address can be hidden on the  
Internet by suppressing PING response.  
There are two ways of assigning IP addresses to your network devices.  
Chapter 2: Networking and Security Basics  
The Use of IP Addresses  
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A static IP address is a fixed IP address that you assign manually to a PC or other device on the network. Since a  
static IP address remains valid until you disable it, static IP addressing ensures that the device assigned it will  
always have that same IP address until you change it. Static IP addresses are commonly used with dedicated  
network devices such as server PCs or print servers. Since a user’s PC is moving around in a network and is  
being powered on or off, it does not require a dedicated IP address that could be a precious resource in your  
network.  
If you use the Router to share your cable or DSL Internet connection, contact your ISP to find out if they have  
assigned a static IP address to your account. If so, you will need that static IP address when configuring the  
Router. You can get the information from your ISP.  
A dynamic IP address is automatically assigned to a device on the network. This IP address is called dynamic  
because it is only temporarily assigned to the PC or other device. After a certain time period, it expires and may  
change. If a PC logs onto the network (or the Internet) and its dynamic IP address has expired, the DHCP server  
will assign it a new dynamic IP address. Most ISPs use dynamic IP addresses for their customers. By default, the  
Router’s Internet Connection Type is Obtain an IP automatically (DHCP).  
For DSL users, many ISPs may require you to log on with a user name and password to gain access to the  
Internet. This is a dedicated, high-speed connection type called Point-to-Point Protocol over Ethernet (PPPoE).  
PPPoE is similar to a dial-up connection, which establishes a PPP session with an ISP server through the DSL  
connection. The server will also provide the Router with a dynamic IP address to establish a connection to the  
Internet.  
A DHCP server can either be located on a designated PC on the network or another network device, such as the  
Router. The PC or network device obtaining an IP address is called the DHCP client. DHCP frees you from having to  
assign IP addresses manually every time a new user is added to your network. For this Wireless-N Router, a DHCP  
client is running on a WAN port for most configurations. A DHCP server is running on the LAN side to provide  
services.  
Static IP address: a fixed address  
assigned to a computer or device that  
is connected to a network.  
By default, a DHCP server is enabled on the Router. If you already have a DHCP server running on your network,  
you MUST disable one of the two DHCP servers. If you run more than one DHCP server on your network, you will  
experience network errors, such as conflicting IP addresses. To disable DHCP on the Router, refer to the Basic  
Setup section in “Chapter 6: Setting Up and Configuring the Router.”  
Dynamic IP address: a temporary IP  
address assigned by a DHCP server.  
DHCP (Dynamic Host Configuration  
Protocol): a protocol that lets one  
device on a local network, known as a  
DHCP server, assign temporary IP  
addresses to the other network  
devices, typically computers.  
Chapter 2: Networking and Security Basics  
The Use of IP Addresses  
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The Intrusion Prevention System (IPS)  
1000+  
Figure 2-2: IPS Scenarios  
IPS is an advanced technology to protect your network from malicious attacks. IPS works together with your SPI  
Firewall, IP Based Access List (IP ACL), Network Address Port Translation (NAPT), and Virtual Private Network  
(VPN) to achieve the highest amount of securities.  
IPS works by providing real-time detection and prevention as an in-line module in a router. The Wireless-N  
Security Router has hardware-based acceleration for real-time pattern matching for malicious attacks. It actively  
filters and drops malicious TCP/UDP/ICMP/IGMP packets and can reset TCP connections. This protects your client  
PCs and servers running various operating systems including Windows, Linux, and Solaris from network worm  
attacks. However, this system does not prevent viruses attached emails.  
Chapter 2: Networking and Security Basics  
The Intrusion Prevention System (IPS)  
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The P2P (peer to peer) and IM (instant messaging) control allows the system administrator to prevent network  
users from using those protocols to communicate with people over the Internet. This helps the administrators to  
set up company policies on how to use their Internet bandwidth wisely.  
The signature file is the heart of the IPS system. It is similar to the Virus definition files on your PC’s Anti-Virus  
programs. IPS uses this file to match against packets coming in to the Router and performs actions accordingly.  
As of today, the Wireless-N Router is shipped with signature file version 1.1.4 and with a total of 1048 rules. The  
rules cover the following categories: DDoS, Buffer Overflow, Access Control, Scan, Trojan Horse, Misc., P2P, IM,  
Virus, Worm, and Web Attacks.  
Customers are encouraged to update their IPS signature file regularly to prevent any new type of attacks on the  
Internet.  
Chapter 2: Networking and Security Basics  
The Intrusion Prevention System (IPS)  
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Chapter 3: Planning Your Virtual Private Network (VPN)  
Why do I need a VPN?  
vpn (virtual private network): a security  
measure to protect data as it leaves one  
network and goes to another over the Internet  
Computer networking provides a flexibility not available when using an archaic, paper-based system. With this  
flexibility, however, comes an increased risk in security. This is why firewalls were first introduced. Firewalls help  
to protect data inside of a local network. But what do you do once information is sent outside of your local  
network, when e-mails are sent to their destination, or when you have to connect to your company's network  
when you are out on the road? How is your data protected?  
That is when a VPN can help. VPNs are called Virtual Private Networks because they secure data moving outside  
of your network as if it were still within that network.  
When data is sent out across the Internet from your computer, it is always open to attacks. You may already have  
a firewall, which will help protect data moving around or held within your network from being corrupted or  
intercepted by entities outside of your network, but once data moves outside of your network—when you send  
data to someone via e-mail or communicate with an individual over the Internet—the firewall will no longer  
protect that data.  
At this point, your data becomes open to hackers using a variety of methods to steal not only the data you are  
transmitting but also your network login and security data. Some of the most common methods are as follows:  
1) MAC Address Spoofing  
Packets transmitted over a network, either your local network or the Internet, are preceded by a packet header.  
These packet headers contain both the source and destination information for that packet to transmit efficiently.  
A hacker can use this information to spoof (or fake) a MAC address allowed on the network. With this spoofed  
MAC address, the hacker can also intercept information meant for another user.  
packet: a unit of data sent over a network  
2) Data Sniffing  
Data “sniffing” is a method used by hackers to obtain network data as it travels through unsecured networks,  
such as the Internet. Tools for just this kind of activity, such as protocol analyzers and network diagnostic tools,  
are often built into operating systems and allow the data to be viewed in clear text.  
3) Man in the middle attacks  
Once the hacker has either sniffed or spoofed enough information, he can now perform a “man in the middle”  
attack. This attack is performed, when data is being transmitted from one network to another, by rerouting the  
Chapter 3: Planning Your Virtual Private Network (VPN)  
Why do I need a VPN?  
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Wireless-N Gigabit Security Router with VPN  
data to a new destination. Even though the data is not received by its intended recipient, it appears that way to  
the person sending the data.  
These are only a few of the methods hackers use and they are always developing more. Without the security of  
your VPN, your data is constantly open to such attacks as it travels over the Internet. Data travelling over the  
Internet will often pass through many different servers around the world before reaching its final destination.  
That's a long way to go for unsecured data and this is when a VPN serves its purpose.  
What is a VPN?  
A VPN, or Virtual Private Network, is a connection between two endpoints—a VPN Router, for instance—in  
different networks that allows private data to be sent securely over a shared or public network, such as the  
Internet. This establishes a private network that can send data securely between these two locations or  
networks.  
This is done by creating a “tunnel”. A VPN tunnel connects the two PCs or networks and allows data to be  
transmitted over the Internet as if it were still within those networks. Not a literal tunnel, it is a connection  
secured by encrypting the data sent between the two networks.  
There are two popular ways to establish a secured tunnel over the Internet — IPsec (IP Security) and SSL (Secure  
Sockets Layer). IPsec runs on top of the IP layer and SSL runs over HTTP sessions. IPsec provides better data  
throughput and SSL offers ease of use without the need of VPN client applications. The Wireless-N Gigabit  
Security Router supports IPsec VPN for maximum throughput on data security.  
encryption: encoding data transmitted in a network  
ip (internet protocol): a protocol used to send data  
over a network  
VPN was created as a cost-effective alternative to using a private, dedicated, leased line for a private network.  
Using industry standard encryption and authentication techniques—IPsec, short for IP Security—the VPN creates  
a secure connection that, in effect, operates as if you were directly connected to your local network. Virtual  
Private Networking can be used to create secure networks linking a central office with branch offices,  
telecommuters, and/or professionals on the road (travelers can connect to a VPN Router using any computer  
with the Linksys VPN client software.)  
software: instructions for the computer  
IMPORTANT: You must have at least one VPN  
Router on one end of the VPN tunnel. At the other  
end of the VPN tunnel, you must have a second VPN  
Router or a computer with the Linksys VPN client  
There are two basic ways to create a VPN connection:  
•
•
VPN Router to VPN Router  
Computer (using the Linksys VPN client software) to VPN Router  
The VPN Router creates a “tunnel” or channel between two endpoints, so that data transmissions between them  
are secure. A computer with the Linksys VPN client software can be one of the two endpoints (refer to “Appendix  
C: Using the Linksys QuickVPN Software for Windows 2000 or XP”). If you choose not to run the VPN client  
software, any computer with the built-in IPsec Security Manager (Microsoft 2000 and XP) allows the VPN Router  
Chapter 3: Planning Your Virtual Private Network (VPN)  
What is a VPN?  
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to create a VPN tunnel using IPsec (refer to “Appendix C: Configuring IPsec between a Windows 2000 or XP PC  
and the Router”). Other versions of Microsoft operating systems require additional, third-party VPN client  
software applications that support IPsec to be installed.  
Home  
Office  
PC 1  
WRVS4400N  
VPN Router  
PC 2  
VPN Router to VPN Router  
An example of a VPN Router-to-VPN Router VPN would be as follows. At home, a telecommuter uses his VPN  
Router for his always-on Internet connection. His router is configured with his office's VPN settings. When he  
connects to his office's router, the two routers create a VPN tunnel, encrypting and decrypting data. As VPNs  
utilize the Internet, distance is not a factor. Using the VPN, the telecommuter now has a secure connection to the  
central office's network, as if he were physically connected. For more information, refer to “Appendix C:  
Configuring a Gateway-to-Gateway IPsec Tunnel.”  
Figure 3-1: VPN Router to VPN Router  
Office  
Computer (using the Linksys VPN client software) to VPN Router  
WRVS4400N  
PC 2  
The following is an example of a computer-to-VPN Router VPN. In her hotel room, a traveling businesswoman  
dials up her ISP. Her notebook computer has the Linksys VPN client software, which is configured with her office's  
IP address. She accesses the Linksys VPN client software and connects to the VPN Router at the central office. As  
VPNs utilize the Internet, distance is not a factor. Using the VPN, the businesswoman now has a secure  
connection to the central office's network, as if she were physically connected.  
Off-site  
Laptop running Linksys VPN Client Software  
For additional information and instructions about creating your own VPN, please visit Linksys’s website at  
www.linksys.com. You can also refer to “Appendix B: Using the Linksys QuickVPN Software for Windows 2000 or  
XP” and “Appendix C: Configuring a Gateway-to-Gateway IPsec Tunnel.”  
Figure 3-2: Computer to VPN Router  
Chapter 3: Planning Your Virtual Private Network (VPN)  
What is a VPN?  
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Chapter 4: Getting to Know the Router  
The Front Panel  
The Router’s LEDs are located on the front panel of the Router.  
Figure 4-1: Front Panel  
LEDs  
POWER  
Green. The POWER LED lights up when the Router is powered on. The LED flashes  
when the Router runs a diagnostic test.  
Chapter 4: Getting to Know the Router  
The Front Panel  
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DIAG  
IPS  
Red. The DIAG LED lights up when the system is not ready. The LED light goes off when  
the system is ready. The Diag LED blinks during Firmware upgrades.  
Green/Red. The IPS LED lights up when the IPS function is enabled. The LED light is off  
when the IPS functions are disabled. The IPS LED flashes green when an external  
attack is detected. The IPS LED flashes red when an internal attack is detected.  
WIRELESS  
Green. The WIRELESS LED lights up when the wireless module is enabled. The LED is  
off when the wireless module is disabled. The WIRELESS LED flashes green when the  
data is transmitting or receiving on the wireless module.  
1-4 (ETHERNET)  
Green. For each port, there are three LEDs. If the corresponding LED is continuously lit,  
the Router is connected to a device at the speed indicated through the corresponding  
port (1, 2, 3, or 4). The LED flashes when the Router is actively sending or receiving  
data.  
INTERNET  
Green. The INTERNET LED lights up the appropriate LED depending upon the speed of  
the device that is attached to the Internet port. If the Router is connected to a cable or  
DSL modem, typically the 10 LED will be the only LED lit up (i.e. 10Mbps). The LED  
Flashes during activity.  
Chapter 4: Getting to Know the Router  
The Front Panel  
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The Back Panels  
The Router’s ports and Reset button are located on the back panel of the Router.  
Figure 4-2: Back Panel  
Reset Button  
The Reset button can be used in one of two ways:  
If the Router is having problems connecting to the Internet, press the Reset button for  
just a second with a paper clip or a pencil tip. This is similar to pressing the Reset  
button on your PC to reboot it.  
If you are experiencing extreme problems with the Router and have tried all other  
troubleshooting measures, press and hold in the Reset button for 10 seconds. This will  
restore the factory defaults and clear all of the Router’s settings, such as port  
forwarding or a new password.  
Ports  
INTERNET  
1-4 (ETHERNET)  
The INTERNET port connects to a cable or DSL modem.  
The four ETHERNET ports connect to network devices, such as PCs, print servers, or  
additional switches.  
POWER  
The POWER port is where you will connect the included AC power cable.  
Chapter 4: Getting to Know the Router  
The Back Panels  
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Antennas and Positions  
The Access Point can be placed in three different positions. It can be either stackable, standalone, or wall-mount.  
Antenna  
The Access Point has three non-detachable 2dBi omni-directional antennas. The three  
antennas have a base that can rotate 90 degrees when in the standing position. The  
three antennas will all be used to support 2X3 MIMO diversity in wireless-N mode.  
Figure 4-3: Stackable Position and its Antenna Setup  
Figure 4-4: Standalone Position and its Antenna Setup  
Chapter 4: Getting to Know the Router  
Antennas and Positions  
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Chapter 5: Connecting the Router  
Overview  
To set up your network, you will do the following:  
•
•
Connect the Router to one of your PCs according to the instructions in this chapter.  
By default, Windows 98, 2000, Millennium, and XP computers are set to obtain an IP address automatically, so  
unless you have changed the default setting, then you will not need to configure your PCs. (If you do need to  
configure your PCs, refer to Windows Help for more information.)  
•
Set up and configure the Router with the setting(s) provided by your Internet Service Provider (ISP) according  
to “Chapter 6: Setting Up and Configuring the Router.”  
The installation technician from your ISP should have left the setup information with you after installing your  
broadband connection. If not, you can call your ISP to request the information. Once you have the setup  
information for your specific type of Internet connection, then you can begin installation and setup of the Router.  
Cable or DSL  
Modem  
Internet  
PC with Ethernet  
Adapter  
Wireless-N Gigabit  
Security Router  
Notebook with  
Ethernet Adapter  
Figure 5-1: Example of a Typical Network  
Chapter 5: Connecting the Router  
Overview  
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Connection Instructions  
1. Before you begin, make sure that all of your hardware is powered off, including the Router, PCs, hubs,  
switches, and cable or DSL modem.  
2. Connect one end of an Ethernet network cable to one of the numbered ports on the back of the Router.  
Connect the other end to an Ethernet port on a network device, e.g., a PC, print server, hub, or switch.  
Repeat this step to connect more PCs or other network devices to the Router.  
3. Connect your cable or DSL modem’s Ethernet cable to the Router’s Internet port.  
4. Power on the cable or DSL modem and the other network device if using one.  
Figure 5-2: Connect a PC  
5. Connect the included AC power cable to the Router’s Power port on the side of the Router, and then plug the  
power adapter into an electrical outlet.  
The Power LED on the front panel will light up as soon as the power adapter is connected properly.  
Proceed to “Chapter 6: Setting Up and Configuring the Router.”  
Figure 5-3: Connect the Internet  
Figure 5-4: Connect the Power  
Chapter 5: Connecting the Router  
Connection Instructions  
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Placement Options  
There are three ways to place the Wireless-N Router. The first way is to place it horizontally on a surface, so it sits  
on its four rubber feet. The second way is to stand the Wireless Router vertically on a surface. The third way is to  
mount it on a wall. The stand and wall-mount options are explained in further detail below.  
Stand Option  
1. Locate the Router’s left side panel.  
2. The Router includes two stands. With the two large prongs facing outward, insert the short prongs into the  
little slots in the Router, and push the stand upward until it snaps into place.  
Repeat this step with the other stand.  
Now that the hardware installation is complete, proceed to “Chapter 6: Setting up and Configuring the  
Wireless-N Router,” for directions on how to set up the Wireless-N Router."  
Figure 5-5: The Stand Option  
Large  
Prongs  
Figure 5-6: Stand  
Chapter 5: Connecting the Router  
Placement Options  
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Wall-Mount Option  
You will need two suitable screws (See Figure 5-7) to mount the Router. Make sure the screw size can fit into the  
criss-cross wall-mount slots.  
1. On the Wireless Router’s back panel are two criss-cross wall-mount slots.  
2. Determine where you want to mount the Wireless Router, and install two screws that are 2-9/16 in (64.5mm)  
apart.  
Figure 5-7: Mounting Dimensions  
3. Line up the Wireless Router so that the wall-mount slots line up with the two screws.  
4. Place the wall-mount slots over the screws and slide the Wireless Router down until the screws fit snugly into  
the wall-mount slots.  
Now that the hardware installation is complete, proceed to “Chapter 6: Setting up and Configuring the  
Wireless-N Router,” for directions on how to set up the Wireless-N Router."  
Figure 5-8: Wall Mounting Hardware  
Chapter 5: Connecting the Router  
Placement Options  
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Chapter 6: Setting Up and Configuring the Router  
Overview  
The Wireless Router has been designed to be functional right out of the box with the default settings. However, if  
you'd like to change these settings, the Wireless Router can be configured through your web browser with the  
Web-based Utility. This chapter explains how to use the Utility to perform the most basic settings.  
The Utility can be accessed via web browsers, such as Microsoft Internet Explorer or Mozilla Firefox through the  
use of a computer that is networked with the Wireless Router.  
Basic Setup  
For a basic network setup, most users only need to use the following screens of the Utility:  
•
•
•
Setup->WAN  
Click the Setup tab and then select the WAN screen. Select the appropriate Internet Connection Type  
according to your ISP if connecting your WAN port to the WAN (DSL or cable modem). Otherwise, most cases  
can leave the default setting to get a WAN port IP address from a DHCP server.  
Setup->Advanced Routing  
Click the Setup tab and then select the Advanced Routing screen. If you are connecting the Router to the  
Internet, leave the default setting. Otherwise, choose the Intranet Router Operation Mode to disable NAT  
(Network Address Translation).  
Management  
Click the Administration tab and then select the Management screen. Change the access password for the  
Router’s Web-based Utility. The default username and password are admin.  
Most users will also customize their wireless settings:  
•
Wireless  
On the Wireless screen, change the default SSID on the Basic Wireless Settings Tab. Select the level of  
security under the Wireless Security Tab and complete the options for the selected security mode. When the  
appropriate security mode is configured, disable SSID Broadcast on the Basic Wireless Settings Tab.  
Chapter 6: Setting Up and Configuring the Router  
Overview  
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How to Access the Web-based Utility  
There are two ways to connect to your Wireless Router for the first time.  
1. Connect your PC to one of the four LAN ports on the Router. (Refer to "Chapter 5: Connecting the Router.")  
Then, configure your PC to obtain IP address automatically through a DHCP server.  
2. Although it is not recommended, you can also connect your PC wirelessly to the Wireless Router. Then,  
configure the wireless interface of your PC to obtain IP address automatically through a DHCP server. It is not  
recommended, because you can easily lose your connection through wireless configuration changes.  
To access the Web-based Utility of the Router:  
•
Launch a web browser, such as Internet Explorer or Mozilla Firefox, and enter the Router’s default IP address,  
Figure 6-1: Router’s IP Address  
192.168.1.1, in the Address field. Press the Enter key.  
•
A screen will appear asking you for your User name and Password. Enter admin in the User Name field, and  
enter your password (default password is admin) in the Password field. Then click the OK button.  
How to Navigate the Utility  
The Web-based Utility consists of the following nine main tabs: Setup, Wireless, Firewall, VPN, QoS,  
Administration, IPS, L2 Switch and Status. Additional screens (sub tabs) will be available from most of the main  
tabs.  
The following briefly describes the main & sub tabs of the Utility.  
Setup  
You will use the Setup tabs to define the Router’s basic functionality.  
Figure 6-2: Login Screen for Web-based  
Utility  
•
•
•
•
IP Version. This screen provides options for IPv4 mode or Dual-Stack IPv4 and IPv6 mode.  
WAN. The Internet connection settings are entered and displayed on this screen.  
LAN. The Local Area Network (LAN) settings are entered and displayed on this screen.  
DMZ. The DMZ (Demilitarized Zone) Host feature allows one local user to be exposed to the Internet to use a  
special-purpose service such as Internet gaming or video conferencing.  
Chapter 6: Setting Up and Configuring the Router  
How to Access the Web-based Utility  
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•
•
•
MAC Address Clone. Some ISPs require that you register a MAC address. This feature clones your network  
adapter's MAC address onto the Router, which prevents you from having to call your ISP to change the  
registered MAC address to the Router's MAC address.  
Advanced Routing. Select the Router’s operation mode either connecting to the Internet or Intranet (NAT is  
only enabled while connecting to the Internet). Configure dynamic or static routing. The Router support RIP  
version 1 and 2 to automatically exchange routing information and establish its routing table.  
Time. Change the time settings on this screen.  
Wireless  
You will use the Wireless tabs to enter a variety of wireless settings for the built-in access point of the Router.  
•
Basic Wireless Settings. Choose the wireless network mode (e.g. B/G/N-Mixed), SSID, and radio channel on  
this screen.  
•
•
Wireless Security. Use this screen to configure the built-in access point’s security settings.  
Wireless Connection Control. Use this screen to control the wireless connections from client devices to the  
Router.  
•
Advanced Wireless Settings. Use this screen to configure the built-in access point’s more advanced wireless  
settings (e.g. Tx Rate Limiting, Channel Bandwidth, etc.).  
Firewall  
You will use the Firewall tabs to configure basic firewall settings, IP access list, and Network Address Port  
Translation settings for your network’s security.  
•
•
•
Basic Settings. Basic Firewall settings are configured from here.  
IP Based ACL. Define IP based Access List to block specific hosts, networks, and protocols (services).  
Internet Access Policy. This screen defines the time schedule to allow or block complete Internet access or to  
specific URLs from the Router.  
•
•
Single Port Forwarding. Use this screen to set up public services or other specialized Internet applications  
with a single port on your network.  
Port Range Forwarding. Use this screen to set up public services or other specialized Internet applications on  
your network using a port range.  
Chapter 6: Setting Up and Configuring the Router  
How to Navigate the Utility  
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•
Port Range Triggering. Use this screen to set up triggered ranges and forwarded ranges to allow special  
Internet applications to pass through this NAT Router.  
•
Service. Use this screen to define customized IP applications based on TCP or UDP. The user-defined service  
type will be available when defining IP based ACL rules.  
VPN  
You will use VPN tabs to configure VPN tunnels and accounts to establish a secured channel through Internet.  
•
IPSec VPN. The VPN Router can create one or multiple tunnels (or secure channel) that each connect between  
two endpoints, so that the transmitted data or information between these endpoints is secure.  
•
•
VPN Client Accounts. Use this screen to designate VPN clients and their passwords.  
VPN Pass Through. This tab allows you to disable IPSec Passthrough, PPTP Passthrough, and L2TP  
Passthrough.  
QoS  
The Router support two types of Quality of Service (QoS) traffic.  
•
•
Application-based QoS. This allows you to assign different traffic priorities for different types of applications.  
Port-based QoS. This allows you to assign traffic priorities on different LAN ports.  
Administration  
You will use Administration tabs for systems administration purposes.  
•
Management. You can alter the Router’s password, its access privileges, SNMP settings, and UPnP settings  
on this screen.  
•
•
Log. This screen allows the configuration of Log settings.  
Diagnostics. On this screen, you can check the connection between the Router and another network device  
on the LAN or Internet.  
•
•
Config Management. This screen allows you to save and restore Router configuration settings.  
Factory Defaults. If you need to restore the Router’s factory defaults, use this screen.  
Chapter 6: Setting Up and Configuring the Router  
How to Navigate the Utility  
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•
Firmware Upgrade. Use this screen to upgrade the Router’s firmware.  
IPS  
You will use this tab for advanced configuration on built-in Intrusion Prevention System (IPS) inside the Router.  
•
•
•
•
Configure. Enable or disable IPS functions from this screen.  
P2P/IM. Allows or blocks specific Peer to Peer (P2P) networks and Instant Messaging (IM) applications.  
Report. Provides reports of network traffic and malicious attacks.  
Information. Provides the signature file version and the Protection Scope of the IPS system.  
L2 Switch  
You will use this tab to configure layer 2 switching features on the 4 port Ethernet Switch (LAN ports only).  
•
•
•
•
VLAN. Virtual Local Area Network (VLAN) assignment is done on this screen.  
RADIUS. Used for configuration of Remote Authorization Dial-In User Service (RADIUS) settings.  
Port Setting. Allows configuration of port speeds and duplex.  
Cable Diagnostics. Used for testing the cables that are connected to the LAN ports.  
Status  
You will use this tab to get the current status on the Router.  
•
WAN / Gateway. This screen provides basic information like firmware version and status information on the  
WAN port.  
•
•
•
•
•
Local Network. This screen provides status information about the local network (four Ethernet Ports).  
Wireless LAN. This screen provides status information on Wireless LAN.  
System Performance. This screen provides traffic statistics on LAN and Wireless LAN ports.  
VPN Clients. This screen provides status information about the Router’s VPN clients (gateway-to-client).  
IPsec. This screen provides status information about the Router’s IPsec VPN tunnels (gateway-to-gateway).  
Chapter 6: Setting Up and Configuring the Router  
How to Navigate the Utility  
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Setup Tab  
The Setup screen contains all of the Router’s basic setup functions. The Router can be used in most network  
settings without changing any of the default values. Some users may need to enter additional information in  
order to connect to the Internet through an ISP (Internet Service Provider) or broadband (DSL, cable modem)  
carrier.  
IP Versions  
IPv4 Only. This option utilizes IPv4 on the Internet and local network.  
Dual-Stack IP. This options utilizes IPv4 over the Internet and IPV4 and IPv6 on the local network.  
Click the Save Settings button to save the network settings or click the Cancel Changes button to undo your  
changes.  
Figure 6-1: Setup - IP Versions  
Chapter 6: Setting Up and Configuring the Router  
Setup Tab  
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WAN  
The WAN Setup screen provides Internet Connection Type and DDNS configurations on the WAN port of the  
Wireless Router. Before starting, you need to find out the Internet Connection Type and settings used by your ISP.  
If the Router is used as an Intranet Router, you can mostly use the default settings. If you want to use the dynamic  
DNS feature, you will need to sign up for a DDNS service.  
Internet Connection Type  
The Router supports six connection types. Each WAN Setup screen and available options will differ depending on  
what kind of connection type you select.  
Automatic Configuration - DHCP  
By default, the Router’s Configuration Type is set to Automatic Configuration - DHCP. The Router will get its  
IP address from a DHCP server of the ISP. Most cable modem ISPs use this option.  
Figure 6-2: Setup - WAN (DHCP)  
Static IP  
If your connection uses a permanent IP address to connect to the Internet, then select Static IP.  
Internet IP Address. This is the Router’s IP address on the WAN port that can be reached from the Internet.  
Your ISP will provide you with the IP Address you need to specify here.  
Subnet Mask. This is the Router’s Subnet Mask on the WAN port. Your ISP will provide you this information  
and your IP Address.  
Default Gateway. Your ISP will provide you with the Default Gateway (Router) to reach the Internet.  
Primary DNS (Required) and Secondary DNS (Optional). Your ISP will provide you with at least one DNS  
(Domain Name System) Server IP Address to resolve host name to IP address mapping.  
Figure 6-3: Setup - WAN (Static IP)  
Chapter 6: Setting Up and Configuring the Router  
Setup Tab  
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PPPoE  
Most DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections. If  
you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoE. If they do,  
you will have to enable PPPoE.  
User Name and Password. Enter the User Name and Password provided by your ISP for PPPoE  
authentication.  
Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has  
been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated  
due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as  
soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the  
Connect on Demand option and enter the number of minutes you want to have elapsed before your Internet  
connection terminates in the Max Idle Time field. Use this option to minimize your DSL connection time if it is  
charged based on time. This option is disabled by default.  
Figure 6-4: Setup - WAN (PPPoE)  
Keep Alive Redial period. This option allows the Router will periodically check your Internet connection. If  
you are disconnected, then the Router will automatically re-establish your connection. To use this option,  
click the option next to Keep Alive. In the Redial Period field, you specify how often you want the Router to  
check the Internet connection. This option is enabled by default and the default Redial Period is 30 seconds.  
Use this option to minimize your Internet connection response time since it will always be connected.  
PPTP  
Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe and Israel only.  
IP Address. This is the Router’s IP address, when seen from the WAN, or the Internet. Your ISP will provide  
you with the IP Address you need to specify here.  
Subnet Mask. This is the Router’s Subnet Mask. Your ISP will provide you the Subnet Mask and your IP  
address.  
Default Gateway. Your ISP will provide you with the Default Gateway IP Address.  
PPTP Server. Enter the IP address of the PPTP server.  
User Name and Password. Enter the User Name and Password provided by your ISP.  
Figure 6-5: Setup - WAN (PPTP)  
Chapter 6: Setting Up and Configuring the Router  
Setup Tab  
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Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has  
been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated  
due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as  
soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the  
Connect on Demand option and enter the number of minutes you want to have elapsed before your Internet  
connection terminates in the Max Idle Time field. Use this option to minimize your DSL connection time if it is  
charged based on time. This option is disabled by default.  
Keep Alive Redial period. If you select this option, the Router will periodically check your Internet  
connection. If you are disconnected, then the Router will automatically re-establish your connection. To use  
this option, click the option next to Keep Alive. In the Redial Period field, you specify how often you want the  
Router to check the Internet connection. This option is enabled by default and the default Redial Period is 30  
seconds. Use this option to minimize your Internet connection response time since it will always be  
connected.  
Heart Beat Signal  
Heart Beat Signal is a service used in Australia. Check with your ISP for the necessary setup information.  
User Name and Password. Enter the User Name and Password provided by your ISP.  
Heart Beat Server. Enter the IP address of the Heart Beat server.  
Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has  
been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated  
due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as  
soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the  
Connect on Demand option and enter the number of minutes you want to have elapsed before your Internet  
connection terminates in the Max Idle Time field. Use this option to minimize your DSL connection time if it is  
charged based on time. This option is disabled by default.  
Keep Alive Redial period. If you select this option, the Router will periodically check your Internet  
connection. If you are disconnected, then the Router will automatically re-establish your connection. To use  
this option, click the option next to Keep Alive. In the Redial Period field, you specify how often you want the  
Router to check the Internet connection. This option is enabled by default and the default Redial Period is 30  
seconds. Use this option to minimize your Internet connection response time since it will always be  
connected.  
Figure 6-6: Setup - WAN (Heart Beat Signal)  
Chapter 6: Setting Up and Configuring the Router  
Setup Tab  
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L2TP  
Layer 2 Tunneling Protocol (L2TP) is a service that tunnels Point-to-Point Protocol (PPP) across the Internet. It  
is used mostly in European countries. Check with your ISP for the necessary setup information.  
IP Address. This is the Router’s IP address, when seen from the WAN, or the Internet. Your ISP will provide  
you with the IP Address you need to specify here.  
Subnet Mask. This is the Router’s Subnet Mask. Your ISP will provide you with the Subnet Mask and your IP  
address.  
Gateway. Your ISP will provide you with the Default Gateway IP Address.  
L2TP Server. Enter the IP address of the L2TP server.  
User Name and Password. Enter the User Name and Password provided by your ISP.  
Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has  
been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated  
due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as  
soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the  
Connect on Demand option and enter the number of minutes you want to have elapsed before your Internet  
connection terminates in the Max Idle Time field. Use this option to minimize your DSL connection time if it is  
charged based on time. This option is disabled by default.  
Figure 6-7: Setup - WAN (L2TP)  
Keep Alive Redial period. If you select this option, the Router will periodically check your Internet  
connection. If you are disconnected, then the Router will automatically re-establish your connection. To use  
this option, click the option next to Keep Alive. In the Redial Period field, you specify how often you want the  
Router to check the Internet connection. This option is enabled by default and the default Redial Period is 30  
seconds. Use this option to minimize your Internet connection response time since it will always be  
connected.  
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Optional Settings (Required by some ISPs)  
This section is common for all the Internet Connection Types. Some of these settings may be required by your ISP.  
Verify with your ISP before making any changes.  
Host Name: Some ISPs, usually cable ISPs, require a host name as identification. You may need to check with  
your ISP to see if your broadband Internet service is configured with a host name. In most cases you can leave  
this field blank.  
Domain Name: Some ISPs, usually cable ISPs, require a domain name as identification. You may need to check  
with your ISP to see if your broadband Internet service is configured with a domain name. In most cases you can  
leave this field blank.  
MTU: MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet  
transmission. Select Manual if you want to manually enter the largest packet size that is transmitted. To have the  
Router select the best MTU for your Internet connection, keep the default setting, Auto.  
Figure 6-8: Setup - WAN (Optional Settings)  
Size: When Manual is selected in the MTU field, this option is enabled. The recommended setting for this field is  
1500 (standard MTU size on Ethernet media).  
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DDNS  
The Router offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and domain  
name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP server, or other  
server behind the Router.  
Before you can use this feature, you need to sign up for DDNS service at DynDNS.org or TZO.com.  
DDNS Service. If your DDNS service is provided by DynDNS.org, then select DynDNS.org from the drop-down  
menu. If your DDNS service is provided by TZO.com, then select TZO.com from the drop-down menu.To disable  
DDNS Service, select Disabled.  
DynDNS.org  
•
User Name, Password, and Host Name. Enter the User Name, Password, and Host Name of the account you  
set up with DynDNS.org.  
Figure 6-9: Setup - WAN (DynDNS.org)  
•
Status. The status of the DDNS service connection is displayed here.  
TZO.com  
•
E-mail Address, TZO Password, and Domain Name. Enter the E-mail Address, Password, and Domain Name of  
the account you set up with TZO.  
•
Status. The status of the TZO service connection is displayed here.  
After entering the necessary information, the Router will advise the DDNS Service of your current WAN (Internet)  
IP address whenever this address changes. If using TZO, you should NOT use the TZO software to perform this “IP  
address update”.  
Connect button: When DDNS is enabled, the Connect button is displayed. Use this button to manually update  
your IP address information on the DDNS server. The Status area on this screen also updates.  
Click the Save Settings button to save the network settings or click the Cancel Changes button to undo your  
changes.  
Figure 6-10: Setup - WAN (TZO.com)  
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LAN  
The LAN Setup section allows you to change the Router’s local network settings for the four Ethernet ports.  
IPv4  
The Router’s Local IPv4 Address and Subnet Mask are shown here. In most cases, you can keep the defaults.  
Local IP Address. Enter the IPv4 address on the LAN side. The default value is 192.168.1.1.  
Subnet Mask. Select the subnet mask from the drop-down menu. The default value is 255.255.255.0.  
Server Settings (DHCP)  
The Router can be used as your network’s DHCP (Dynamic Host Configuration Protocol) server, which  
automatically assigns an IP address to each PC on your network. Unless you already have one, it is highly  
recommended that you leave the Router enabled as a DHCP server.  
DHCP Server. DHCP is enabled by default. If you already have a DHCP server on your network, or you don't want  
a DHCP server, then select Disabled (no other DHCP features will be available). If you already have a DHCP server  
on your network, and you want the Router to act as a Relay for that DHCP Server, select DHCP Relay, then enter  
the DHCP Server IP Address.  
Figure 6-11: Setup - LAN  
Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. This value will  
automatically follow your local IP address settings. Normally, you assign the first IP address for the Router (e.g.  
192.168.1.1) so that you can assign an IP address to other devices starting from the 2nd IP address (e.g.  
192.168.1.2). The last address in the subnet is for subnet broadcast (e.g. 192.168.1.255) so that the address  
cannot be assigned to any host.  
Maximum Number of DHCP Users. Enter the maximum number of PCs that you want the DHCP server to assign  
IP addresses to. This number cannot be greater than the available host addresses in the subnet (e.g. 253 for /24  
subnet). In order to determine the DHCP IP Address range, add the starting IP address (e.g., 100) to the number of  
DHCP users.  
Client Lease Time. This is the amount of time a DHCP client can keep the assigned IP address before it sends a  
renewal request to the DHCP server. The default value is 0, which actually means one day.  
Static DNS 1-3. If applicable, enter the IP address(es) of your DNS server(s).  
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WINS. The Windows Internet Naming Service (WINS) performs name resolution function (similar to DNS) in the  
Windows network environment. It can help you to determine the IP address of a remote Windows PC from its  
computer name. If you have a WINS server, enter that server's IP Address here. Otherwise, leave this blank.  
IPv6  
IPv6 Address. If you selected dual-stack option under IP Versions Setup screen, enter the IPv6 address on the  
LAN side of the Router.  
Prefix Length. Enter the IPv6 prefix length. The default is 64, which should not need to be changed.  
Router Advertisement. Enabling this option allows the Router to send out IPv6 Router Advertisement packets  
periodically. This helps IPv6 hosts to learn their IPv6 prefix and setup their IPv6 Address automatically.  
Primary DNS. Enter the Primary IPv6 DNS server address.  
Secondary DNS. Enter the Secondary IPv6 DNS server address.  
Click the Save Settings button to save the network settings or click the Cancel Changes button to undo your  
changes.  
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DMZ  
The DMZ screen allows one local PC to be exposed to the Internet for use of a special-purpose service, such as  
Internet gaming and video-conferencing. DMZ hosting forwards traffic to all the ports for the specified PC  
simultaneously, unlike Port Range Forwarding that can only forward a maximum of 10 ranges of ports.  
DMZ Hosting. This feature allows one local PC to be exposed to the Internet for use of a special-purpose service  
such as Internet gaming and video-conferencing. To use this feature, select Enabled. To disable the DMZ feature,  
select Disabled.  
DMZ Host IP Address. To expose one PC, enter the computer’s IP address.  
Figure 6-12: Setup - DMZ  
Click the Save Settings button to save the network settings or click the Cancel Changes button to undo your  
changes.  
MAC Address Clone  
Some ISPs require that you register a MAC address. This feature clones your PC network adapter's MAC address  
onto the Router, and prevents you from having to call your ISP to change the registered MAC address to the  
Router's MAC address. The Router's MAC address is a 6-byte hexadecimal number assigned to a unique piece of  
hardware for identification.  
Mac Address Clone. Select Enabled or Disabled. The default is Enabled.  
Mac Address. Enter the MAC Address registered with your ISP in this field.  
Clone My PC’s MAC button. When Mac Address Clone is enabled, click this to copy the MAC address of the  
network adapter in the computer that you are using to connect to the Web-based utility.  
Figure 6-13: Setup - MAC Address Clone  
Click Save Settings to save the MAC Cloning settings or click the Cancel Changes button to undo your changes.  
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Advanced Routing  
Operating Mode  
Select the Operating mode in which the Router will function.  
Internet Gateway. This is the normal mode of operation. This allows all devices on your LAN to share the same  
WAN (Internet) IP address. In the Internet Gateway mode, the NAT (Network Address Translation) mechanism is  
enabled.  
Intranet Router. You either need another Router to act as the Internet Gateway, or all PCs on your LAN must be  
assigned (fixed) Internet IP addresses. In Intranet Router mode, the NAT mechanism is disabled.  
Dynamic Routing  
The Router's dynamic routing feature can be used to automatically establish a routing table through a database  
exchange with peer routers (running the same routing protocol). The Router supports RIP (Routing Information  
Protocol) versions 1 & 2.  
Figure 6-14: Setup - Advanced Routing  
RIP (Routing Information Protocol. The Router, using the RIP protocol, calculates the most efficient route for  
the network’s data packets to travel between the source and the destination based upon the shortest paths.  
RIP Send Packet Version. Choose the version of RIP packets you want to send to peers: RIPv1 or RIPv2. This  
should match the version supported by other Routers on your LAN.  
RIP Recv Packet Version. Choose the version of RIP packets you want to receive from peers: RIPv1 or RIPv2.  
This should match the version supported by other Routers on your LAN.  
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Static Routing  
Sometimes you will prefer to use static routes to build your routing table instead of using dynamic routing  
protocols. Static routes do not require CPU resources to exchange routing information with a peer router. You can  
also use static routes to reach peer routers that do not support dynamic routing protocols. Static routes can be  
used together with dynamic routes. Be careful not to introduce routing loops in your network.  
To set up static routing, you should add route entries in the routing table that tell the Router where to forward  
packets to specific IP destinations.  
Enter the following data to create a static route entry:  
1. Select Set Number. Select the set number (routing table entry number) that you wish to view or configure. If  
necessary, click Delete This Entry to clear the entry.  
2. Destination IP Prefix. Enter the network address of the remote LAN segment. For a standard Class C IP  
domain, the network address is the first three fields of the Destination LAN IP; the last field should be zero.  
3. Subnet Mask. Enter the Subnet Mask used on the destination LAN IP domain. For Class C IP domains, the  
Subnet Mask is 255.255.255.0.  
4. Next Hop Router. Enter the next hop router used to reach your destination LAN, as defined in Step (2).  
Figure 6-15: Setup - Advanced Routing (Routing  
Table)  
5. Hop Count (max. 15). This value gives the number of routers that a data packet passes through before  
reaching its destination. It is used to define the priority on which route to use if there is a conflict between a  
static route and dynamic route.  
Show Routing Table button. Click this button to show the routing table established either through dynamic or  
static routing methods.  
Click the Save Settings button to save the Routing settings, click the Cancel Changes button to undo your  
changes or click the Show Routing Table button to view the current routing table.  
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Time  
You can either define your Router’s time manually or automatically through Time Server. The default is  
Automatically.  
Manually  
If you wish to enter the time and date manually, select the Date from the drop-down fields and enter the hour,  
minutes, and seconds in the Time field using 24 hour format (example 10:00pm would be entered 22:0:0).  
Automatically  
Time Zone. Select the time zone for your location and your setting synchronizes over the Internet with public NTP  
(Network Time Protocol) Servers.  
Figure 6-16: Setup - Time  
User Defined NTP Server. If you want to use your own NTP server, select the Enabled option. The default is  
Disabled.  
NTP Server IP Address. Enter the IP address of your own NTP server.  
Click the Save Settings button to save the Routing settings, click the Cancel Changes button to undo your  
changes or click the Show Routing Table button to view the current routing table.  
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Wireless Tab  
Basic Wireless Settings  
Change the basic wireless network settings on this screen.  
Basic Settings  
Configure the basic Wireless Network attributes for this Wireless Router.  
SSID Name. The SSID is the unique name shared between all devices in a wireless network. It is case-sensitive,  
must not exceed 32 alphanumeric characters, and may be any keyboard character. Make sure this setting is the  
same for all devices in your wireless network. The default SSID name is linksys-n.  
Figure 6-17: Wireless - Basic Wireless Settings  
Wireless Network Mode. Select one of the following modes. The default is B/G/N-Mixed.  
B-Only: All the wireless client devices can be connected to the Wireless Router at Wireless-B data rates with  
a maximum speed of 11Mbps.  
G-Only: Both Wireless-N and Wireless-G client devices can be connected at Wireless-G data rates with a  
maximum speed of 54Mbps. Wireless-B clients cannot be connected in this mode.  
N-Only: Only Wireless-N client devices can be connected at Wireless-N data rates with a maximum speed of  
300Mbps.  
B/G-Mixed: Both Wireless-B and Wireless-G client devices can be connected at their respective data rates.  
Wireless-N devices can be connected at Wireless-G data rates.  
G/N-Mixed: Both Wireless-G and Wireless-N client devices can be connected at their respective data rates.  
Wireless-B clients cannot be connected in this mode.  
B/G/N-Mixed: All the wireless client devices can be connected at their respective data rates in this mixed  
mode.  
Disabled: To disable wireless connectivity completely. This might be useful during system maintenance.  
Wireless Channel. Select the appropriate channel to be used between your Wireless Router and your client  
devices. The default is channel 6. You can also select Auto so that your Wireless Router will select the channel  
with the lowest amount of wireless interference while the system is booting up. Auto channel selection will start  
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when you click the Save Settings button, and it will take several seconds to scan through all the channels to find  
the best channel. For the Wireless-N 40MHz channel option (see Wireless - Advanced Wireless Settings Tab), the  
Wireless Router will automatically select the adjacent 20MHz channel to combine them into a wider channel.  
SSID Broadcast. This option allows the SSID to be broadcast on your network. You may want to enable this  
function while configuring your network, but make sure that you disable it when you are finished. With this  
enabled, someone could easily obtain the SSID information with site survey software or Windows XP and gain  
unauthorized access to your network. Click Enabled to broadcast the SSID to all wireless devices in range. Click  
Disabled to increase network security and prevent the SSID from being seen on networked PCs. The default is  
Enabled in order to help users configure their network before use.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Wireless Security  
Change the Wireless Router’s wireless security settings on this screen.  
Wireless Security  
Security Mode. Select the wireless security mode you want to use, WPA-Personal, WPA2-Personal,  
WPA2-Personal Mixed, WPA-Enterprise, WPA2-Enterprise, WPA2-Enterprise Mixed, or WEP. (WPA stands  
for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption and forward compatible  
with IEEE 802.11e. WEP stands for Wired Equivalent Privacy, Enterprise refers to using RADIUS server for  
authentication, while RADIUS stands for Remote Authentication Dial-In User Service.) Refer to the appropriate  
instructions below after you select the Authentication Type and SSID Interoperability settings. To disable wireless  
security completely, select Disabled. The default is Disabled.  
Figure 6-18: Wireless - Wireless Security  
(Disabled)  
Wireless Isolation (within SSID). When disabled, wireless PCs that are associated to the same network name  
(SSID), can see and transfer files between each other. By enabling this feature, Wireless PCs will not be able to  
see each other. This feature is very useful when setting up a wireless hotspot location. The default is Disabled.  
The following section describes the detailed options for each Security Mode.  
Disabled  
To disable wireless security completely, select Disabled.  
WPA-Personal (also known as WPA-PSK)  
Figure 6-19: Wireless - Wireless Security  
(WPA-Personal)  
WPA Algorithms. WPA offers you two encryption methods, TKIP and AES for data encryption. Select the type of  
algorithm you want to use, TKIP or AES. The default is TKIP.  
WPA Shared Key. Enter a WPA Shared Key of 8-63 characters.  
Key Renewal Timeout. Enter a Key Renewal Timeout period, which instructs the Wireless Router how often it  
should change the encryption keys. The default is 3600 seconds.  
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WPA2-Personal  
WPA Algorithms. WPA2 always uses AES for data encryption.  
WPA Shared Key. Enter a WPA Shared Key of 8-63 characters.  
Key Renewal Timeout. Enter a Key Renewal Timeout period, which instructs the Wireless Router how often it  
should change the encryption keys. The default is 3600 seconds.  
Figure 6-20: Wireless - Wireless Security  
(WPA2-Personal)  
WPA2-Personal Mixed  
This security mode supports the transition from WPA-Personal to WPA2-Personal. You can have client devices  
that use either WPA-Personal or WPA2-Personal. The Wireless Router will automatically choose the encryption  
algorithm used by each client device.  
WPA Algorithms. Mixed Mode automatically chooses TKIP or AES for data encryption.  
WPA Shared Key. Enter a WPA Shared Key of 8-63 characters.  
Key Renewal Timeout. Enter a Key Renewal Timeout period, which instructs the Wireless Router how often it  
should change the encryption keys. The default is 3600 seconds.  
Figure 6-21: Wireless - Wireless Security  
(WPA2-Personal Mixed)  
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WPA-Enterprise  
This option features WPA used in coordination with a RADIUS server for client authentication. (This should only be  
used when a RADIUS server is connected to the Wireless Router.)  
RADIUS Server IP Address. Enter the RADIUS server’s IP address.  
RADIUS Server Port. Enter the port number used by the RADIUS server. The default is 1812.  
WPA Algorithms. WPA offers you two encryption methods, TKIP and AES for data encryption. Select the type of  
algorithm you want to use, TKIP or AES. The default is TKIP.  
Shared Secret. Enter the Shared Secret key used by the Wireless Router and RADIUS server.  
Figure 6-22: Wireless - Wireless Security  
(WPA-Enterprise)  
Key Renewal Timeout. Enter a Key Renewal Timeout period, which instructs the Wireless Router how often it  
should change the encryption keys. The default is 3600 seconds.  
WPA2-Enterprise  
This option features WPA2 used in coordination with a RADIUS server for client authentication. (This should only  
be used when a RADIUS server is connected to the Wireless Router.)  
RADIUS Server IP Address. Enter the RADIUS server’s IP address.  
RADIUS Server Port. Enter the port number used by the RADIUS server. The default is 1812.  
WPA Algorithms. WPA2 always uses AES for data encryption.  
Shared Secret. Enter the Shared Secret key used by the Wireless Router and RADIUS server.  
Figure 6-23: Wireless - Wireless Security  
(WPA2-Enterprise)  
Key Renewal Timeout. Enter a Key Renewal Timeout period, which instructs the Wireless Router how often it  
should change the encryption keys. The default is 3600 seconds.  
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WPA2-Enterprise Mixed  
This security mode supports the transition from WPA-Enterprise to WPA2-Enterprise. You can have client devices  
that use either WPA-Enterprise or WPA2-Enterprise. The Wireless Router will automatically choose the encryption  
algorithm used by each client device.  
RADIUS Server IP Address. Enter the RADIUS server’s IP address.  
RADIUS Server Port. Enter the port number used by the RADIUS server. The default is 1812.  
WPA Algorithms. Mixed Mode automatically chooses TKIP or AES for data encryption.  
Shared Secret. Enter the Shared Secret key used by the Wireless Router and RADIUS server.  
Figure 6-24: Wireless - Wireless Security  
(WPA2-Enterprise Mixed)  
Key Renewal Timeout. Enter a Key Renewal Timeout period, which instructs the Wireless Router how often it  
should change the encryption keys. The default is 3600 seconds.  
WEP  
This security mode is defined in the original IEEE 802.11. This mode is not recommended now due to its weak  
security protection. Users are urged to migrate to WPA or WPA2.  
Authentication Type. Choose the 802.11 authentication type as either Open System or Shared Key. The default  
is Open System.  
Default Transmit Key. Select the key to be used for data encryption.  
WEP Encryption. Select a level of WEP encryption, 64 bits (10 hex digits) or 128 bits (26 hex digits).  
Passphrase. If you want to generate WEP keys using a Passphrase, then enter the Passphrase in the field  
provided and click the Generate key.  
Key 1-4. If you want to manually enter WEP keys, then complete the fields provided. Each WEP key can consist of  
the letters “A” through “F” and the numbers “0” through “9”. It should be 10 characters in length for 64-bit  
encryption or 26 characters in length for 128-bit encryption.  
Figure 6-25: Wireless - Wireless Security (WEP)  
Tx Key. Select one of the keys to be used for data encryption (when you manually enter multiple WEP keys).  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Wireless Connection Control  
This screen allows you to configure the Connection Control List to either permit or block specific wireless client  
devices connecting to (associating with) the Wireless Router.  
Wireless Connection Control  
Enabled/Disabled. Enable or disable wireless connection control. The default is Disabled.  
Connection Control  
There are two ways to control the connection (association) of wireless client devices. You can either prevent  
specific devices from connecting to the Wireless Router, or you can allow only specific client devices to connect  
to the Wireless Router. The client devices are specified by their MAC addresses. The default is to allow only  
specific client devices.  
Wireless Client List  
Figure 6-26: Wireless - Wireless Connection  
Control  
Instead of manually entering the MAC addresses of each client, the Wireless Router provides a convenient way to  
select a specific client device from the client association table. Click this button and a window appears to let you  
select a MAC address from the table. The selected MAC address will be entered into the Connection Control List.  
Connection Control List  
MAC 01-20. Enter the MAC addresses of the wireless client devices you want to control.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen.  
Figure 6-27: Select MAC Address from Wireless  
Client List  
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Advanced Wireless Settings  
This screen allows you to configure the advanced settings for the Wireless Router. The Wireless-N Router adopts  
several new parameters to adjust the channel bandwidth and guard intervals to improve the data rate  
dynamically. Linksys recommends to let your Wireless Router automatically adjust the parameters for maximum  
data throughput.  
Advanced Wireless  
You can change the following advanced parameters (some only for Wireless-N) for this Wireless Router.  
Wireless-N data rates are classified into 16 MCS numbers (0-15). MCS stands for Modulation and Coding  
Scheme. For the same MCS number, the data rate changes according to the Channel Bandwidth and Guard  
Interval settings. You can see the change through the drop-down menu of Tx Rate Limiting (11n clients).  
Channel Bandwidth. You can select the channel bandwidth manually for Wireless-N connections. When it is set  
to 20MHz, only the 20MHz channel is used. When it is set to 40MHz, Wireless-N connections will use 40MHz  
channel but Wireless-B and Wireless-G will still use 20MHz channel. The default is Auto.  
Figure 6-28: Wireless - Advanced Wireless  
Settings  
Guard Interval. You can select the guard interval manually for Wireless-N connections. The two options are  
Short (400ns) and Long (800ns). The default is Auto.  
Tx Rate Limiting (11b clients). This option provides rate limiting on Wireless-B connections. Wireless-B clients  
can be limited to data rate specified by IEEE 802.11b. The default is Auto.  
Tx Rate Limiting (11g clients). This option provides rate limiting on Wireless-G connections. Wireless-G clients  
can be limited to data rates specified by IEEE 802.11g and 802.11b. The default is Auto.  
Tx Rate Limiting (11n clients). This option provides rate limiting on Wireless-N connections. Wireless-N clients  
can be limited to data rates specified by draft IEEE 802.11n, IEEE 802.11g, and 802.11b. The data rate associated  
with each MCS number (0-15) changes according to your selection on Channel Bandwidth and Guard Interval.  
The default is Auto.  
CTS Protection Mode. CTS (Clear-To-Send) Protection Mode function boosts the Wireless Router’s ability to  
catch all wireless transmissions, but will severely decrease performance. Keep the default setting, Auto, so the  
Wireless Router can use this feature as needed, when the Wireless-N/G products are not able to transmit to the  
Wireless Router in an environment with heavy 802.11b traffic. Select Disabled if you want to permanently disable  
this feature.  
WMM. Wi-Fi Multimedia is a QoS feature defined by WiFi Alliance before IEEE 802.11e was finalized. Now it is  
part of IEEE 802.11e. When it is enabled, it provides four priority queues for different types of traffic. It  
automatically maps the incoming packets to the appropriate queues based on QoS settings (in IP or layer 2  
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header). WMM provides the capability to prioritize traffic in your environment. The default in Enabled. Select  
High Performance (N-Only) if you want to achieve highest throughput on 11n connections. Note that 11b and  
11g clients performance will be affected by setting to this mode.  
IOT Mode. Interoperability Mode. Enabling this mode will help this AP to communicate with Linksys retail client  
cards (e.g. WPC300N) at 11n rates. This mode is a temporary measure to cope with implementation differences  
on 802.11n draft specification. This option will be removed eventually when IEEE802.11n is finalized. The default  
is disabled.  
Beacon Interval. This value indicates the frequency interval of the beacon. A beacon is a packet broadcast by  
the Wireless Router to keep the network synchronized. A beacon includes the wireless networks service area, the  
Wireless Router address, the Broadcast destination addresses, a time stamp, Delivery Traffic Indicator Maps, and  
the Traffic Indicator Message (TIM). The default is 100 ms.  
DTIM Interval. This value indicates how often the Wireless Router sends out a Delivery Traffic Indication  
Message (DTIM). Lower settings result in more efficient networking, while preventing your PC from dropping into  
power-saving sleep mode. Higher settings allow your PC to enter sleep mode, thus saving power, but interferes  
with wireless transmissions. The default is 1 ms.  
RTS Threshold. This setting determines how large a packet can be before the Wireless Router coordinates  
transmission and reception to ensure efficient communication. This value should remain at its default setting of  
2347. If you encounter inconsistent data flow, only minor modifications are recommended.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Firewall Tab  
The Firewall Tab allows you to configure software security features like SPI (Stateful Packet Inspection) Firewall,  
IP based Access List, restriction LAN users on Internet (WAN port) access, and NAPT (Network Address Port  
Translation) Settings (only works when NAT is enabled) to limited services to specific ports.  
Note that for WAN traffic, NAPT settings are applied first, then it will pass the SPI Firewall settings, followed by IP  
based Access List (which requires more CPU power).  
Basic Settings  
Firewall: SPI (Stateful Packet Inspection) Firewall, when you enable this feature, the Router will perform deep  
packet inspection on all the traffic going through the Router and drop the packets that do not follow the  
pre-defined protocol behavior. The default is Enable.  
DoS Protection: When enabled, the Router will prevent DoS (Denial of Service) attacks coming in from the  
Internet. DOS attacks are making your Router’s CPU busy such that it cannot provide services to regular traffic.  
The default Is Enable.  
Figure 6-29: Firewall - Basic Settings  
Block WAN Request: When enabled, the Router will ignore PING Request from the Internet so it seems to be  
hidden. The default is Enable.  
Remote Management: When enabled, the Router will allow the Web-based Utility to be accessed from the  
Internet. The default is Disable.  
HTTPS: This option is only useful when Remote Management is enabled. When enabled, the Web based Utility  
can be accessed only through HTTPS session from WAN side instead of regular HTTP. This will have your remote  
Web session protected by SSL encryption algorithms. The default is Enable.  
Multicast Pass-through: When enabled, the Router will allow IP Multicast traffic to come in from the Internet.  
The default is Disable.  
MTU: Set your data packet maximum size at the IP layer manually or automatically from negotiation. The  
maximum size on Ethernet is 1500 bytes. The default is auto.  
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Restrict WEB Features  
Block. Select the Web features that you wish to restrict. All those features could place security concern to your  
PCs on the LAN side. You have to balance your needs on those applications and security. The default is  
unselected.  
•
•
•
Java: Java is a programming language for websites. If you deny Java, you run the risk of not having  
access to Internet sites created using this programming language.  
Cookies: A cookie is data stored on your PC and used by Internet sites when you interact with them, so  
you may not want to deny cookies.  
ActiveX: ActiveX is a Microsoft (Internet Explorer) programming language for websites. If you deny  
ActiveX, you run the risk of not having access to Internet sites using this programming language. Also,  
Windows Update uses ActiveX, so if this is blocked, Windows update will not work.  
•
Proxy: If local users have access to WAN proxy servers, they may be able to circumvent the Router's  
content filters and access Internet sites blocked by the Router. Denying Proxy will block access to any  
WAN proxy servers.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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IP Based ACL  
This screen shows a summary of configured IP based Access List. The Access List is used to restrict traffic going  
through the Router either from WAN or LAN port. There are two ways to restrict data traffic. You can block specific  
types of traffic according to your ACL definitions. Or you can allow only specific types of traffic according to your  
ACL definition. The ACL rules will be read according to its priority. If there is a match for a packet, the action will  
be taken and following lower priority rules will not be checked against this packet.  
Note that the higher the number of rules that need to be checked against packets, the lower the throughput. Use  
ACL rules with caution.  
There are two default rules in the table that cannot be deleted. The first rule will allow all traffic coming in from  
LAN port to pass the Router. The second rule will allow all traffic coming in from WAN port. These two rules have  
the lowest priority, so without adding any user defined rules, all the packets can be passed through from both  
WAN and LAN sides.  
Figure 6-30: Firewall - IP Based ACL  
The rule will be enabled when the Enable button is checked, and when Date and Time are matched. If any of  
conditions are not met, the rule will not be used to check against packets.  
The following are descriptions on each of the fields in the ACL Table:  
Priority: This defines the order on which rule is checked against first. The smaller number has higher priority.  
The default rules will always be checked last.  
Enable: This tells the Router if the rule is active or not. You can have rules defined in the ACL Table but in an  
inactive state. The administrator can decide on when to enable specific ACL rules manually.  
Action: This defines how the rule is to affect the traffic. It can be either Allow or Deny. If the rule is matched and  
the action is Allow, the packet will be forwarded. If the rule is matched and the action is Deny, the packet will be  
dropped.  
Service: You can either select one of the pre-defined services in the drop-down menu or you can define new  
services by clicking the Service Management button. Once you defined your own service, it will be listed on the  
top of the drop-down menu. You can also select ALL to allow or block all types of IP traffic.  
Figure 6-31: Firewall - IP Based ACL  
(pre-defined services)  
The User-defined Service GUI page can be either accessed from the New Rule screen by clicking Service  
Management button, or you can access it directly from the 2nd layer tab under Firewall.  
Source Interface: Select LAN, WAN, or ANY interface.  
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Source: This is the source IP address to be matched against. You can define a Single IP address, a Range of IP  
addresses (start IP and end IP), a Network (IP Prefix and Network Mask), or ANY IP addresses.  
Destination: This is the destination IP address to be matched against. You can define a Single IP address, a  
Range of IP addresses (start IP and end IP), a Network (IP Prefix and Network Mask), or ANY IP addresses.  
Time: Displays the time period this rule will be enabled (used together with Date). It can be set to Any Time.  
Date: Displays the days in a week this rule will be enabled (used together with Time). It can be set to Any Day.  
Edit button: Use this button to go to Edit IP ACL Rule screen and modify this rule.  
Delete button: Use this button to delete the ACL rule from the list.  
Following is a description of the buttons in the IP Based ACL screen:  
Figure 6-32: Firewall - IP Based ACL (Service  
definition)  
Page Selections: You can select specific page of ACL list from the drop-down menu to be displayed. Or you can  
navigate them page by page through Previous Page and Next Page button.  
Add New Rule: Click this button to enter the page to define a new ACL rule.  
Disable All Rule: Click this page to disable all the user defined rules.  
Delete All Rule: Click this page to delete all the user defined rules.  
Edit IP ACL Rule  
This Web page can be entered only through IP Based ACL Tab. You can enter this page by clicking Add New Rule  
button on that page.  
New Rule  
Action: Select either Allow or Deny. Default is Allow.  
Service: Select ALL or pre-defined (or user-defined) services from the drop-down menu.  
Log: If checked, this ACL rule will be logged when a packet match happens.  
Figure 6-33: Firewall - Edit IP ACL Rule  
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Log Prefix: This string will be attached in front of the log for the matched event.  
Source Interface: Select LAN, WAN, or ANY interface.  
Source: The source IP address to be matched against. You can define a Single IP address, a Range of IP  
addresses (start IP and end IP), a Network (IP Prefix and Network Mask), or ANY IP addresses.  
Destination: The destination IP address to be matched against. You can define a Single IP address, a Range of IP  
addresses (start IP and end IP), a Network (IP Prefix and Network Mask), or ANY IP addresses.  
Service Management Button: Click this button and the Service Tab to add new service type to the Service  
drop-down menu.  
Scheduling  
Time: Enter the time period this rule will be applied (used together with Date). It can be set to Any Time.  
Date: Enter the days in a week this rule will be applied (used together with Time). It can be set to Any Day.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Internet Access Policy  
Access to the Internet can be managed by policies. A policy consists of four components. You need to define the  
PCs (MAC or IP address) to apply this policy, either Deny or Allow Internet service, what time and date to enable  
this policy, and what URLs or Keywords to apply this policy.  
Use the settings on this screen to establish an access policy. Selecting a policy from the drop-down menu will  
display that policy's settings. You can then perform the following operations:  
•
•
•
Create a Policy - see instructions below.  
Delete the current policy - click the Delete button.  
View all policies - click the Summary button. On the Summary screen, the policies are listed with the  
following information: No., Policy Name, Days, Time, and a checkbox to delete (clear) the policy. To delete  
a policy, check the checkbox in the Delete column, and click the Delete button  
•
View or change the PCs covered by the current policy - click the Edit List of PCs button.  
On the List of PCs screen, you can define PCs by MAC Address or IP Address. You can also enter a range of IP  
Addresses if you want this policy to affect a group of PCs.  
To create an Internet Access policy:  
1. Select the desired policy number from the Internet Access Policy drop-down menu.  
2. Enter a Policy Name in the field provided.  
3. To enable this policy, select the Enable option.  
Figure 6-34: Firewall - Internet Access Policy  
4. Click the Edit List of PCs button to select which PCs will be affected by the policy. The List of PCs screen will  
appear in a sub-window. You can select a PC by MAC Address or IP Address. You can also enter a range of IP  
Addresses if you want this policy to affect a group of PCs. After making your changes, click the Save Settings  
button to apply your changes.  
5. Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access  
for the PCs you listed on the List of PCs screen.  
6. Decide what Days and what Times you want this policy to be enforced. Select the individual days during  
which the policy will be in effect, or select Everyday. Enter a range of hours and minutes during which the  
policy will be in effect, or select 24 Hours.  
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7. If you wish to block access to Web sites, use the Website Blocking by URL Address or Website Blocking  
by Keyword feature.  
•
•
Website Blocking by URL Address. Enter the URL or Domain Name of the web sites you wish to block.  
Website Blocking by Keyword. Enter the keywords you wish to block in the fields provided. If any of  
these Keywords appears in the URL of a web site, access to the site will be blocked. Note that only the  
URL is checked, not the content of each Web page.  
8. Click the Save Settings button to save the policy settings.  
Figure 6-35: Firewall - Internet Access Policy  
Summary  
Figure 6-36: Firewall - Internet Access Policy  
(List of PCs to apply policy)  
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Single Port Forwarding  
This is one of the NAPT (Network Address Port Translation) feature. Use the Single Port Forwarding screen when  
you want to open specific services (that use single port). This allows users on the Internet to access this server  
by using the WAN port address and the matched external port number. When users send these types of request to  
your WAN port IP address via the Internet, the NAT Router will forward those requests to the appropriate servers  
on your LAN.  
Application Name. Enter the name of the application you wish to configure.  
External Port. This is the port number used by the service or Internet application. Internet users must connect  
using this port number. Check with the software documentation of the Internet application for more information.  
Internal Port. This is the port number used by the Router when forwarding Internet traffic to the PC or server on  
your LAN and is usually the same as the External Port number. If it is different, the Router performs a Port  
Translation, so that the port number used by Internet users is different from the port number used by the server or  
Internet application.  
Figure 6-37: Firewall - Single Port Forwarding  
For example, you could configure your Web Server to accept connections on both port 80 (standard) and port  
8080. Then, enable Port Forwarding, set the External Port to 80 and the Internal Port to 8080. Now, any traffic  
from the Internet to your Web server will be using port 8080, even though the Internet users used the standard  
port, 80. (Users on the local LAN can and should connect to your Web Server using the standard port 80.)  
Protocol. Select the protocol used for this application, TCP and/or UDP.  
IP Address. For each application, enter the IP address of the PC running the specific server application.  
Enabled. Select Enabled to enable port forwarding for the relevant server application.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Port Range Forwarding  
This is one of the NAPT (Network Address Port Translation) features. The Port Range Forwarding screen allows  
you to set up public services on your network, such as web servers, ftp servers, e-mail servers, or other  
specialized Internet applications that use one or multiple port numbers (e.g. video conference). The port numbers  
being used will not change while forwarding to the local network. This allows users on the Internet to access this  
server by using the WAN port IP address and the pre-defined port numbers. When users send these types of  
requests to your WAN port IP address via the Internet, the NAT Router will forward those requests to the  
appropriate servers on your LAN.  
Application. Enter the name of the application you wish to configure.  
Start. This is the beginning of the port range. Enter the beginning of the range of port numbers (external ports)  
used by the server or Internet application. Check with the software documentation of the Internet application for  
more information if necessary.  
Figure 6-38: Port Range Forwarding  
End. This is the end of the port range. Enter the end of the range of port numbers (external ports) used by the  
server or Internet application. Check with the software documentation of the Internet application for more  
information if necessary.  
Protocol. Select the protocol(s) used for this application, TCP and/or UDP.  
IP Address. For each application, enter the IP address of the PC running the specific application.  
Enabled. Select Enabled to enable port range forwarding for the relevant application.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Port Range Triggering  
This is one of the NAPT (Network Address Port Translation) feature. Port Range Triggering is used for special  
applications that can request a port to be opened on demand. For this feature, the Wireless Router will watch  
outgoing packets for specific port numbers. This will trigger the Wireless Router to allow the incoming packets  
within the specified forwarding range and forward those packets to the triggering PC. One of the example  
applications is QuickTime. It would use port 1000 for outgoing packets and 2000 for incoming packets.  
Application Name. Enter the name of the application you wish to configure.  
Triggered Range. For each application, list the triggered port number range. These are the ports used by  
outgoing traffic. Check with the Internet application documentation for the port number(s) needed. In the first  
field, enter the starting port number of the Triggered Range. In the second field, enter the ending port number of  
the Triggered Range.  
Figure 6-39: Port Range Triggering  
Forwarded Range. For each application, list the forwarded port number range. These are the ports used by  
incoming traffic. Check with the Internet application documentation for the port number(s) needed. In the first  
field, enter the starting port number of the Forwarded Range. In the second field, enter the ending port number of  
the Forwarded Range.  
Enabled. Select Enabled to enable port range triggering for the relevant application.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Service  
This screen allows users to define new service types based on TCP or UDP. The new service will be added to the  
summary table below. It will also show up in the service drop-down menu under Edit IP ACL Rule screen.  
Name: Define the new service name. The service name must be different from existing pre-defined or  
user-defined services.  
Type: The service can rely on UDP only, TCP only, or both UDP and TCP.  
Start Port: Enter the starting port number.  
Finish Port: Enter the finishing port number. The finishing port number must be greater or equal to starting port  
number.  
Save button: Click this button to save a new defined service.  
Figure 6-40: Firewall - Services  
Delete button: To delete an existing service, click the Edit button at the end of each row in the summary table.  
Edit button: Use this button to select a service to modify or delete.  
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VPN Tab  
IPsec VPN  
Use this screen to create VPN tunnels between the Router to the remote Router. All Linksys Routers with IPsec  
VPN support can be used as a remote Router (e.g. RVS4000, WRV54G, RV042). The Router supports VPN tunnels  
using IPsec (IP Security) technologies. You can create, delete, or modify a VPN tunnel on this page.  
Select Tunnel Entry. Select a tunnel to configure or create a new tunnel.  
Delete Button. Click this button to delete the selected tunnel.  
Summary Button. Clicking this button shows the settings of all existing tunnels.  
IPsec VPN Tunnel. Select Enable to enable this tunnel.  
Tunnel Name. Enter a name for this tunnel, such as “Anaheim Office”.  
Local Security Group  
Figure 6-41: VPN - IPsec VPN  
Local Security Group Type. Select the local LAN user(s) behind the Router that can use this VPN tunnel. This  
may be a single IP address or Sub-network. Notice that the Local Security Group must match or cover the other  
router's Remote Security Group.  
IP Address. Enter the IP address on the local network.  
Subnet Mask. If the Subnet option is selected, enter the mask to determine the IP prefix on the local network.  
Remote Security Group  
Remote Security Group. Select the remote LAN user(s) behind the remote gateway who can use this VPN tunnel.  
This may be a single IP address, a Sub-network, or any addresses. If Any is set, the Router acts as responder and  
accepts request from any remote user. Notice that the Remote Security Group must match or cover the other  
Router's Local Security Group.  
Figure 6-42: VPN Tunnel Summary  
IP Address. Enter the IP address on the remote network.  
Subnet Mask. If the Subnet option is selected, enter the mask to determine the IP prefix on the remote network.  
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Remote Security Gateway. Select the remote gateway WAN port IP Address that can use this VPN tunnel. This  
may be a Single IP address or Any addresses. If is set, the Router acts as responder and accepts request from any  
remote Gateway.  
IP Address. Enter the IP address on the remote WAN port.  
Key Management  
Key Exchange Method. The Router supports both automatic and manual key management. When choosing  
automatic key management, IKE (Internet Key Exchange) protocols are used to negotiate key material for SA  
(Security Association). If manual key management is selected, no key negotiation is needed. Basically, manual  
key management is used in small static environments or for troubleshooting purpose. Notice that both sides must  
use the same Key Management method (both Auto or both Manual). For Manual key management, all the  
configurations need to match on both sides.  
Auto IKE  
Encryption. The Encryption method determines the complexity to encrypt/decrypt data packets. Only 3DES is  
supported. Notice that both sides must use the same Encryption method.  
Authentication. Authentication determines a method to authenticate the data packets to make sure they  
come from a trusted source. Either MD5 or SHA1 may be selected. Notice that both sides (VPN endpoints)  
must use the same Authentication method.  
•
•
MD5: A one way hashing algorithm that produces a 128-bit digest.  
SHA1: A one way hashing algorithm that produces a 160-bit digest.  
PFS (Perfect Forward Secrecy). If PFS is enabled, IKE Phase 2 negotiation will generate a new key material  
for IP traffic encryption and authentication. Note: that both sides must have this selected.  
Pre-Shared Key. IKE uses the Pre-shared Key field to authenticate the remote IKE peer. Both characters and  
hexadecimal values are acceptable in this field. e.g. “My_@123” or “0x4d795f40313233” Note that both  
sides must use the same Pre-shared Key.  
Key Life Time. This field specifies the lifetime of the IKE generated key. If the time expires, a new key will be  
renegotiated automatically. The Key Life Time may range from 300 to 100,000,000 seconds. The default Life  
Time is 3600 seconds.  
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Manual  
Encryption Algorithm. The Encryption method determines the complexity to encrypt/decrypt data packets.  
Only 3DES is supported. Notice that both sides must use the same Encryption method.  
Encryption Key. This field specifies a key used to encrypt and decrypt data packets. Both characters and  
hexadecimal values are acceptable in this field. Note: that both sides must use the same Encryption Key.  
Authentication Algorithm. Authentication determines a method to authenticate the data packets to make  
sure they come from a trusted source. Either MD5 or SHA1 may be selected. Notice that both sides (VPN  
endpoints) must use the same Authentication method.  
•
•
MD5: A one way hashing algorithm that produces a 128-bit digest.  
SHA1: A one way hashing algorithm that produces a 160-bit digest.  
Authentication Key. This field specifies a key used to authenticate IP traffic. Both characters and  
hexadecimal values are acceptable in this field. Note: that both sides must use the same Authentication Key.  
Inbound SPI/Outbound SPI. The SPI (Security Parameter Index) is carried in the IPsec ESP header. This  
enables the receiver to select the SA (Security Association), under which a packet should be processed. The  
SPI is a 32-bit value. Both decimal and hexadecimal values are acceptable. e.g. “987654321” or  
“0x3ade68b1”. Each tunnel must have unique an Inbound SPI and Outbound SPI. No two tunnels share the  
same SPI. Notice that Inbound SPI must match the other Router's Outbound SPI, and vice versa.  
Status  
Status. This field shows the connection status for the selected tunnel. The state is either connected or  
disconnected.  
Connect button. Use this to establish a connection for the current VPN tunnel. If you have made any changes,  
click Save Settings to first apply your changes.  
Disconnect button. Use this to break a connection for the current VPN tunnel.  
Figure 6-43: View VPN Tunnel Log  
View Log button. Click this to view the VPN log, which shows details of each tunnel established. You can change  
the Log type to show only VPN tunnel related events.  
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Advanced Settings button. If the Key Exchange Method is Auto (IKE), this button provides access to some  
additional settings relating to IKE. Use this if the Router is unable to establish a VPN tunnel to the remote VPN  
Gateway; ensure the Advanced Settings match those on the remote VPN Gateway. Note that Phase 1 is used for  
key negotiation and Phase 2 is used for actual data exchange.  
Advanced Settings (Phase 1 and Phase 2)  
Operation Mode. Select the method to match the remote VPN endpoint.  
•
•
Main: Main Mode is slower but more secure.  
Aggressive: Aggressive mode is faster but less secure.  
Local Identity. Select the desired option to match the “Remote Identity” setting at the other end of this  
tunnel.  
Figure 6-44: IPsec VPN Advanced Settings  
•
•
Local IP address: Your WAN IP Address.  
Name: Your domain name.  
Remote Identity. Select the desired option to match the “Local Identity” setting at the other end of this  
tunnel.  
•
•
Local IP address: WAN IP Address of the remote VPN endpoint.  
Name: Domain name of the remote VPN endpoint.  
Encryption. Encryption Algorithm used for the IKE SA. This setting must match the setting used at the other  
end of this tunnel.  
Authentication. Authentication Algorithm used for the IKE SA. This setting must match the setting used at the  
other end of this tunnel.  
•
•
MD5: A one way hashing algorithm that produces a 128-bit digest.  
SHA1: A one way hashing algorithm that produces a 160-bit digest.  
Group. The Group setting determines the bit size used in the IKE exchange. This value must match the value  
used at the other end of this tunnel.  
Key Life Time. This determines the time interval before the IKE SA (Security Association) expires. (It will  
automatically be re-established if necessary.) While using a short time period increases security, it also  
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degrades performance. While this unit is in seconds, it is common to use periods over an hour (3600 seconds)  
for the SA Life Time.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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VPN Client Accounts  
You can allow remote users to easily establish a VPN connection to your Router using the Linksys QuickVPN client  
utility without using a compatible VPN Router with IPsec VPN settings. This is achieved by creating user accounts  
on the Router and authenticate users through Username and Password. After creating user accounts, it will be  
summarized in the table below.  
For users using QuickVPN, it will first establish an SSL connection with remote Wireless Router to get  
authenticated. Then QuickVPN will automatically negotiate IPsec settings with the remote Router. All the data  
packets will be encrypted using IPsec thereafter.  
The Wireless Router supports up to five Linksys QuickVPN clients by default. Additional QuickVPN Client licenses  
can be purchased separately.  
Figure 6-45: VPN - VPN Client Accounts  
Username. Enter the username using any combination of keyboard characters.  
Password. Enter the password you would like to assign to this user.  
Re-enter to Confirm. Retype the password to ensure that it has been entered correctly.  
Allow User to Change Password. This option determines whether the user is allowed to change their password.  
VPN Client List Table  
No. Displays the user number.  
Active. When checked, the designated user can connect, otherwise the VPN client account is disabled.  
Username. Displays the username.  
Edit button. This button is used to modify the username, password, or toggle between whether the user is  
allowed to change their password.  
Remove button. This button is used to delete a user account.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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VPN Passthrough  
This screen allows users to use their own VPN algorithms to connect to their remote Routers. The Wireless Router  
will just pass the traffic through.  
IPsec Passthrough. Internet Protocol Security (IPsec) is a suite of protocols used to implement secure exchange  
of packets at the IP layer. IPsec Passthrough is enabled by default to allow IPsec tunnels to pass through the  
Router. To disable IPsec Passthrough, select Disabled.  
PPTP Passthrough. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be  
tunneled through an IP network. PPTP Passthrough is enabled by default. To disable PPTP Passthrough, select  
Disabled.  
Figure 6-46: VPN - VPN Passthrough  
L2TP Passthrough. Layer 2 Tunneling Protocol is the similar to PPP but allows Layer 2 and the PPP session to  
terminate at different servers or locations. L2TP Passthrough is enabled by default. To disable L2TP Passthrough,  
select Disabled.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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QoS Tab  
QoS (Quality of Service) allows you to prioritize network traffic using either Application-based priority (such as  
Web browsing applications, FTP applications, etc.) or Port-based priority, which allows you to assign priorities to  
the four physical network ports. Higher priority traffic will be allocated more bandwidth, which results in lower  
latency (or delay).  
Application-based  
The Application-based QoS controls priority differentiation for data packets between LAN (including WLAN) and  
WAN ports. Application-based QoS is achieved by software running on the CPU so it cannot control traffic  
between LANs that are switched directly by a hardware switch chipset.  
Application-based QoS. QoS (Quality of Service) is disabled by default. When enabled, this option allows you to  
assign priority based on the application type.  
Set Internet Bandwidth. Enter approximate bandwidth number for your WAN connection. This will help the  
software-based algorithm to allocate bandwidth to different priorities.  
Figure 6-47: QoS - Application Based  
Table 1: Application-based QoS  
Application  
Port(s)  
Primary Use  
Name  
FTP  
TCP Port 20  
TCP Port 80  
FTP (File Transfer Protocol) is used for transferring files over the Internet.  
HTTP (HyperText Transfer Protocol) is used for browsing the Internet.  
HTTP  
Telnet  
Telnet is a client-server protocol used to communicate over a network or  
the Internet.  
TCP Port 23  
SMTP  
TCP Port 25  
TCP Port 110  
User Defined  
SMTP (Simple Mail Transfer Protocol) is used for sending e-mail.  
POP3 (Post Office Protocol version 3) is used for retrieving e-mail.  
User Defined (0-65535)  
POP3  
Specific Port  
IMPORTANT: If you don’t assign different priorities to applications, there will be  
no differentiation between different traffic types.  
•
Select the desired option for each application: High priority, Medium priority, or Low priority.  
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Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
Port-based  
Port-based QoS is implemented in hardware so it can achieve better throughput. It can only control traffic among  
the four LAN ports.  
LAN ports 1-4 can be assigned High, Medium, Normal, or Low priority. Lower priority traffic will be slowed down  
to allow greater throughput for higher priority traffic.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
Figure 6-48: Port-based  
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Administration Tab  
Management  
Local Gateway Access  
This configures the administrator user accounts to manage the Wireless Router through Web based Utility. Only  
the first user is created by default. Other accounts are not created by default so you can leave them alone. Make  
sure to change the first user account username and password when you configure your Wireless Router for the  
first time.  
Gateway Userlist. Select a user to configure from the drop-down menu.  
Gateway Username. Enter the user name here.  
Gateway Password. Enter the password.  
Figure 6-49: Administration - Management  
Re-enter to Confirm. Retype the password in this field.  
SNMP  
This configures the Simple Network Management Protocol settings. Users can use management software to read  
or write information from or to the device.  
Device Name. Enter a suitable name. This name will be used to identify this device, and will be displayed by your  
SNMP software.  
SNMP. Select Enable if you wish to use SNMP. To use SNMP, you need SNMP software on your PC.  
Read Community. Enter the SNMP community name for SNMP “Get” commands.  
Write Community. Enter the SNMP community name for SNMP “Set” commands.  
Trap To. Enter the IP Address of the SNMP Manager where traps will be sent. If desired, this may be left blank.  
UPnP. Universal Plug and Play allows Windows MP and XP to automatically configure the Internet Gateway on its  
routing table. If you want to use UPnP, keep the default setting, Enable. Otherwise, select Disable.  
IGMP Proxy. IGMP (Internet Group Membership Protocol) Proxy can facilitate the communication between IGMP  
clients and IGMP Routers. Enable this feature if you are using IP multicast services in your network.  
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Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
Log  
This screen provides you options on how you want to manage your system logs. The Wireless Router provides  
four categories of event logging (Firewall, VPN, System, and ACL). You can configure the Wireless Router to send  
the event log to you through e-mail, upload the log to syslog server, or view the log locally on the Wireless Router.  
Email Alerts. If enabled, an e-mail will be sent when the number of DoS events exceeds the defined threshold or  
the total events number exceed 100. If enabled, the e-mail address information (below) must be provided.  
Denial of Service Thresholds. Enter the number of DoS (Denial of Service) attacks that need to be detected (and  
blocked) by the software firewall before an e-mail alert is sent. The minimum value is 20, the maximum value is  
100. Note that if IPS has been enabled, IPS would block DoS attacks before they reach the firewall. In that case,  
please check the IPS Report to know event details.  
SMTP Mail Server. Enter the address (domain name) or IP address of the SMTP (Simple Mail Transport Protocol)  
server you use for outgoing e-mails.  
Figure 6-50: Administration - Log  
Email Address for Alert Logs. Enter the e-mail address the log is to be sent to.  
Return Email Address. The e-mail will show this address as the sender's address.  
Enable Syslog. Select Enable if you want to use this feature.  
Syslog Server. Enter the IP Address in the Syslog Server field when Enable Syslog is checked.  
Local Log. Enable this if you want to see the log locally on the Wireless Router.  
View Log button. If Local Log is enabled, click View Log to view the event log on the Wireless Router.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
Figure 6-51: View Log pop-up window  
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Diagnostics  
Ping Test Parameters  
Ping Target IP. Enter the IP address or URL that you want to ping.  
Ping Size. Enter the size of the packet you want to use.  
Number of Pings. Enter the number of times you wish to ping the target device.  
Ping Interval. Enter the time period (in milliseconds) between each ping.  
Ping Timeout. Enter the desired time period (in milliseconds). If a response is not received within the defined  
ping period, the ping is considered to have failed.  
Start Test button. Click this button to begin the test. A new screen will appear and display the test results. A  
summary of the PING results will be shown on the bottom of this screen.  
Figure 6-52: Administration - Diagnostics  
Ping Result. It displays the Ping status.  
Traceroute Test Parameters  
TraceRoute Target. Enter the IP address or Host name to perform the traceroute testing.  
Start Test button. Click this button to begin the test. A new screen will appear and display the test results.  
Figure 6-53: Ping Test Screen  
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Config Management  
Save Configuration  
Save Configuration to File button. Click this button to save your Wireless Router’s current configuration to a file  
on your PC. Enter the file name on the Windows screen that appears.  
Restore Configuration  
Select a previously saved configuration file to restore the configuration to the Wireless Router. This could be  
helpful if you want to use the same configuration on a new hardware or after resetting to the factory defaults. You  
can either enter the file path name yourself or use the Browse button to select a file from the Windows file  
system.  
Figure 6-54: Trace Route Test Screen  
Browse button. Click this button to select a previously saved configuration from the Windows file system.  
Load button. Click this button to start the restoration process.  
Figure 6-55: Administration - Config  
Management  
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Factory Defaults  
Restore Factory Defaults. Click this button to reset all configuration settings to their default values. All settings  
that have been saved will be lost when the default settings are restored. After clicking the button, another screen  
will appear. Click OK to continue. Another screen will appear while the system reboots.  
Figure 6-56: Administration - Factory Default  
Firmware Upgrade  
To upgrade firmware, download the latest firmware for the product from Linksys.com, extract it to your computer,  
and perform the steps below:  
1. File. Type in the name of the extracted firmware upgrade file or click Browse to locate the file from the file  
system.  
2. Start to Upgrade. Once you have selected the appropriate file, click the Start to Upgrade button and follow  
the on-screen instructions to upgrade your firmware.  
Figure 6-57: Administration - Firmware  
Upgrade  
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IPS Tab  
The Wireless Router supports advanced Intrusion Prevention Systems (IPS), which is an integral part of the  
self-defending strategy. It allows you to stay current on the latest threats so that malicious or damaging traffic is  
accurately identified, classified, and stopped in realtime. You can use IPS together with Firewall, IP based ACL,  
and IPsec VPN to achieve maximum securities. The IPS is hardware-accelerated on this Wireless Router.  
Configure IPS functions on this screen after enabling IPS.  
Configuration  
IPS Function. Enable or Disable the IPS Function as desired.  
Abnormally Detection  
Figure 6-58: IPS - Configuration  
•
•
•
•
HTTP. Web attacks use weaknesses on HTTP protocol to trigger the buffer overflow on Web servers. The  
default is Disable.  
FTP. FTP attacks use weaknesses on FTP protocol to generate illegal FTP commands to the FTP server.  
The default is Disable.  
TELNET. Telnet attacks use weakness on TELNET protocol to execute illegal commands on the TELNET  
server. The default is Disable.  
RPC. Remote Procedure Call allows attackers to issue illegal commands to be executed on RPC server.  
The default is Disable  
Signature Update. To protect your local network from the latest Internet threats, you are encouraged to upgrade  
the IPS Signature file bi-weekly. First, you need to download the Signature file from www.linksys.com to your PC.  
Then you can select this file by clicking the Browse button. Use the Upgrade button to start an upgrade.  
Browse button. Enter the path name of the new signature file In the field provided, or click the Browse button to  
find this file from your Windows file system.  
Update button. After you have selected the file, click this button to start an upgrade.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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P2P/IM  
This tab allows the system administrator to set up policies on using P2P or IM software across the Internet.  
Peer to Peer  
When users download files from the Internet by Peer to Peer (P2P) software, the WAN port bandwidth will be  
occupied. You can enable the blocking to the following P2P software applications. The defaults are non-block for  
the following applications:  
GNUTELLA(EZPEER), FASTTRACK, KURO, EDONKEY2000, BITTORRECT, DIRECTCONNECT, PIGO, and WINMX.  
Instant Messenger  
Users might use IM software to chat with friends or transferring files (bandwidth hogging). You can enable the  
blocking to the following IM software applications. The defaults are non-block for the following applications.  
Figure 6-59: IPS - P2P / IM  
MSN, ICQ, YAHOO MESSEGER, SKYPE, IRC, ODIGO, REDIFF, GOOGLE TALK, and IM QQ.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Report  
This screen provides the network history status, including network traffic and attack counts, through diagram  
and tables.  
Report Diagram: Twenty-four hour diagram displays network traffic and attacks.  
Attacker  
Displays the IP Address of attackers and the frequency (number of times) of the attacks in a table.  
Attacked Category  
Displays the category (type) of attack and the frequency (number of times) of the attacks in a table.  
Click the View Log button to view the log.  
Figure 6-60: IPS - Report  
Figure 6-61: IPS Log Raw Data  
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Information  
Signature Version. The Signature Version displays the version of the signature patterns file loaded in the  
Wireless Router that protects against malicious threats.  
Last Time Upload. This displays when the signature patterns file in the Wireless Router were last updated.  
Protect Scope. Displays a list of the categories of attacks that the IPS feature in the Router protects against.  
Those includes DoS/DDoS, Buffer Overflow, Web Attack, Scan, Trojan Horse, and IM / P2P.  
Figure 6-62: IPS - Information  
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L2 Switch Tab  
The Layer 2 Switch Tab provides configurations to the layer 2 switching features on the four Ethernet LAN ports of  
the Wireless Router. They include VLAN, port configuration, cable diagnostics, and RADIUS authentication.  
VLAN  
VLAN Configuration  
The Wireless Router supports Port-based VLAN. You can assign each port to one of the four VLANs or VLAN Trunk.  
The VLAN tags are attached internally inside the switch. No packets will leave the switch with VLAN tags.  
Figure 6-63: L2 Switch - VLAN  
VLANs are broadcast and multicast domains. Broadcast and multicast traffic is transmitted only within the VLAN  
in which the traffic is generated. The Wireless Router currently supports only one IP subnet so PCs on different  
VLANs cannot communicate with each other. PCs connected to the VLAN Trunk port can be accessed on all  
VLANs.  
Trunk Port. Select one of the LAN ports to accept traffic from and to all VLANs. The default is None.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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RADIUS  
RADIUS mode provides authentication on devices connecting to the LAN ports. It requires installation of a RADIUS  
server on your local network.  
Mode. Select Enabled or Disabled, as desired.  
RADIUS IP. Enter the RADIUS server IP address.  
RADIUS UDP Port. Identifies the UDP port. The UDP port is used to verify the RADIUS server authentication.  
RADIUS Secret. Indicates the Key string used for authenticating and encrypting all RADIUS communications  
between the Wireless Router and the RADIUS server. This key must match the RADIUS server’s configuration.  
Administration State. Specifies if each port needs RADIUS authentication. The defaults are Force Authorized  
so no authentication is needed. The possible field values are:  
Figure 6-64: L2 Switch - RADIUS  
•
•
Auto. The controlled port state is set by the RADIUS Mode.  
Force Authorized. The controlled port state is set to Force-Authorized (forward traffic). All connections  
can be made.  
•
Force Unauthorized. The controlled port state is set to Force-Unauthorized (discard traffic). All  
connections are blocked.  
Parameters button. Click this button to configure RADIUS re-authentication and timeout period for  
re-authentication and EAP.  
Figure 6-65: L2 Switch - RADIUS  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Port Settings  
Port. Specifies the number of the four LAN ports.  
Link. Displays the port duplex mode (Full or Half) and speed (10/100/1000 Mbps). Full indicates that the interface  
supports transmission between the device and its link partner in both directions simultaneously. Half indicates  
that the interface supports transmission between the device and the client in only one direction at a time.  
Mode. Specifies port duplex mode (Full or Half) and speed (10/100/1000 Mbps). Auto Negotiation is a protocol  
between two link partners that enables a port to advertise its transmission rate, duplex mode and flow control  
abilities to its partner. Default is Auto Negotiation.  
Flow Control. Configure the flow control setting on the port. Select to enable. The default is disabled.  
Figure 6-66: L2 Switch - Port Settings  
MaxFrame. Configure the maximum ethernet frame size sent or received on the port. Default is 1518. You can set  
only to a value lower than 1518.  
Change these settings as described here and click Save Settings to apply your changes, or click Cancel  
Changes to cancel your changes. Help information is displayed on the right-hand side of the screen, and click  
More for additional details.  
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Cable Diagnostics  
This screen provides a utility to help troubleshoot ethernet-cable-related connectivity issues.  
Port. Select the port number, then click the Apply button and the diagnostics will start.  
Pair. Each cable consists of eight pins (four pairs).  
Cable Length. The length of the cable.  
Status. The status of the pair.  
Figure 6-67: L2 Switch - Cable Diagnostics  
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Status Tab  
The Status Tab provides current status on this Wireless Router including WAN, LAN, Wireless LAN, System  
Performance, VPN client connections, and IPsec VPN connections.  
WAN / Gateway  
This screen provides some basic information on the Wireless Router (e.g. firmware version, time) and WAN port  
MAC/IP address and connection status.  
Firmware Version. Displays the current firmware version.  
MAC Address. Displays the WAN port MAC Address, as seen by your ISP.  
Current Time. Displays the time on this Wireless Router according to your settings on the Setup->Time tab.  
Figure 6-68: Status - WAN / Gateway  
Internet Connection  
Connection Mode. Displays the Internet connection type setting on WAN port.  
Interface. Displays the WAN port Interface status (Up or Down).  
IP Address. Displays the WAN port IP Address.  
Subnet Mask. Displays the WAN port IP subnetmask.  
Default Gateway. Displays the default Router to reach Internet or other networks from the WAN port.  
DNS. Shown here are the DNS (Domain Name System) IP addresses currently used by this Wireless Router.  
DHCP Release button. Click this button to release IP address on WAN port if using DHCP.  
DHCP Renew button. Click this button to renew IP address on the WAN port if using DHCP.  
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LAN  
This screen provides some basic information on the LAN ports of this Wireless Router.  
IP Versions. Displays the IP versions configured on the LAN side.  
MAC Address. Displays the LAN port MAC Address. All four LAN ports share the same MAC address.  
IP Address. Displays the LAN port IPv4 Address. All four LAN ports share the same MAC address.  
Subnet Mask. Displays the LAN port IPv4 subnetmask.  
IPv6 Address. Displays the LAN port IPv6 IP address, if IPv6 is enabled.  
DHCP Server. Displays the status of the Router's DHCP server.  
Figure 6-69: Status - LAN  
Figure 6-70: LAN DHCP Client Table  
Figure 6-71: LAN ARP Table  
Start IP Address. Displays the beginning of the range of IP addresses used by the DHCP Server.  
End IP Address. Displays the end of the range of IP addresses used by the DHCP Server.  
DHCP Client Table button. Click this button to open the DHCP Client Table screen, which shows you which PCs  
have been assigned an IP address from the Wireless Router’s DHCP server. You will see a list of DHCP clients (PCs  
and other network devices) with the following information: Client Host Name, IP Address, MAC Address, and the  
length of time (in second) before its assigned IP address expires.  
ARP Table button. Click this button will open the ARP Table screen, which shows you the ARP Table on the  
Wireless Router. The ARP Table provides IP address to MAC address mapping. On the ARP Table screen, you will  
see a list of address mapping between IP (layer 3) and MAC (layer 2).  
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Wireless LAN  
This screen provides some basic information on the Wireless LAN of this Wireless Router.  
MAC Address. Displays the MAC address on the Wireless LAN interface.  
Network Mode. Displays the Wireless network operating mode (e.g. B/G/N-Mixed).  
Wireless SSID. Displays the Wireless network name.  
Channel Bandwidth. Displays the wireless channel bandwidth setting.  
Wireless Channel. Displays the radio channel number used.  
Security. Displays the Wireless Security mode.  
Figure 6-72: Status - Wireless LAN  
SSID Broadcast. Displays the setting on SSID Broadcast.  
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System Performance  
This screen provides data packet statistics on the LAN switch and Wireless LAN of the Router.  
All LAN Ports / WLAN  
The All LAN Ports column shows the aggregate traffic statistics from all four LAN ports.  
Packets Received. This shows the number of packets received.  
Packets Sent. This shows the number of packets sent.  
Bytes Received. This shows the number of bytes received.  
Bytes Sent. This shows the number of bytes sent.  
Error Packets Received. This shows the number of error packets received.  
Drop Received Packets. This shows the number of packets being dropped after they were received.  
Figure 6-73: Status - System Performance  
L2 Switch Ports  
Tx Bytes. Displays the number of Bytes transmitted from the selected port.  
Tx Frames. Displays the number of Ethernet Frames transmitted from the selected port.  
Rx Bytes. Displays the number of Bytes received on the selected port.  
Rx Frames. Displays the number of Ethernet frames received on the selected port.  
Tx Errors. Displays the number of error frames transmitted from the selected port.  
Rx Errors. Displays the number of error frames received from the selected port.  
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VPN Clients  
This screen displays the VPN Clients’ connection status. VPN Clients are configured under VPN->VPN Client  
Accounts and provide users that are running Linksys QuickVPN to establish a IPsec connection with a remote  
Wireless Router.  
Username. Displays the username of the VPN Client.  
Status. Displays the connection status of the VPN Client.  
Start Time. Displays the start time of the most recent VPN session for the specified VPN Client.  
End Time. Displays the end time of a VPN session, if the VPN Client has disconnected.  
Duration. Displays the total connection time of the latest VPN session.  
Refresh button. Updates the screen with the latest VPN Client information.  
Figure 6-74: Status - VPN Clients  
Disconnect button. Select the Disconnect box at the end of each row in the VPN Clients Table and then click the  
Disconnect button to disconnect a VPN Client session.  
IPsec VPN  
This screen displays the IPsec VPN (gateway to gateway) connection status. IPsec VPN are configured under  
VPN->IPsec VPN to establish a IPsec connection with a remote Linksys VPN Router.  
Tunnel Name. Displays the Tunnel Name of the IPsec VPN connection.  
Status. Displays the connection status of the VPN Client.  
Action. Use the Connect and Disconnect button to manage your IPsec VPN connection.  
Figure 6-75: Status - IPsec VPN  
Chapter 6: Setting Up and Configuring the Router  
Status Tab  
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Appendix A: Troubleshooting  
This appendix provides solutions to problems that may occur during the installation and operation of the Router.  
Read the descriptions below to help solve your problems. If you can't find an answer here, check the Linksys  
website at www.linksys.com.  
Common Problems and Solutions  
1. I need to set a static IP address on a PC.  
The Router, by default, assigns an IP address range of 192.168.1.100 to 192.168.1.149 using the DHCP server  
on the Router. To set a static IP address, you can only use the ranges 192.168.1.2 to 192.168.1.99 and  
192.168.1.150 to 192.168.1.254. Each PC or network device that uses TCP/IP must have a unique address to  
identify itself in a network. If the IP address is not unique to a network, Windows will generate an IP conflict  
error message. You can assign a static IP address to a PC by performing the following steps:  
For Windows 98 and Millennium:  
A. Click Start, Setting, and Control Panel. Double-click Network.  
B. In The following network components are installed box, select the TCP/IP-> associated with your  
Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line with no  
association to an Ethernet adapter. Highlight it and click the Properties button.  
C. In the TCP/IP properties window, select the IP address tab, and select Specify an IP address. Enter a  
unique IP address that is not used by any other computer on the network connected to the Router. You can  
only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to 192.168.1.254.  
Make sure that each IP address is unique for each PC or network device.  
D. Click the Gateway tab, and in the New Gateway prompt, enter 192.168.1.1, which is the default IP  
address of the Router. Click the Add button to accept the entry.  
E. Click the DNS tab, and make sure the DNS Enabled option is selected. Enter the Host and Domain names  
(e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not  
provided the DNS IP address, contact your ISP to get that information or go to its website for the  
information.  
F. Click the OK button in the TCP/IP properties window, and click Close or the OK button for the Network  
window.  
G. Restart the computer when asked.  
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For Windows 2000:  
A. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.  
B. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and  
select the Properties option.  
C. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and  
click the Properties button. Select Use the following IP address option.  
D. Enter a unique IP address that is not used by any other computer on the network connected to the Router.  
You can only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to  
192.168.1.254.  
E. Enter the Subnet Mask, 255.255.255.0.  
F. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).  
G. Toward the bottom of the window, select Use the following DNS server addresses, and enter the  
Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its  
website to find the information.  
H. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the  
Local Area Connection Properties window.  
I. Restart the computer if asked.  
For Windows XP:  
The following instructions assume you are running Windows XP with the default interface. If you are using the  
Classic interface (where the icons and menus look like previous Windows versions), please follow the  
instructions for Windows 2000.  
A. Click Start and Control Panel.  
B. Click the Network and Internet Connections icon and then the Network Connections icon.  
C. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and  
select the Properties option.  
D. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the  
Properties button.  
E. Enter a unique IP address that is not used by any other computer on the network connected to the Router.  
You can only use an IP address in the ranges 192.168.1.2 to 192.168.1.99 and 192.168.1.151 to  
192.168.1.254.  
F. Enter the Subnet Mask, 255.255.255.0.  
G. Enter the Default Gateway, 192.168.1.1 (Router’s default IP address).  
H. Toward the bottom of the window, select Use the following DNS server addresses, and enter the  
Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its  
website to find the information.  
I. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local  
Area Connection Properties window.  
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2. I want to test my Internet connection.  
A. Check your TCP/IP settings.  
For Windows 98 and Millennium:  
Refer to Windows Help for details. Make sure Obtain IP address automatically is selected in the settings.  
For Windows 2000:  
1. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.  
2. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using,  
and select the Properties option.  
3. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP),  
and click the Properties button. Make sure that Obtain an IP address automatically and Obtain  
DNS server address automatically are selected.  
4. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the  
Local Area Connection Properties window.  
5. Restart the computer if asked.  
6. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the  
Local Area Connection Properties window.  
7. Restart the computer if asked.  
For Windows XP:  
The following instructions assume you are running Windows XP with the default interface. If you are using the  
Classic interface (where the icons and menus look like previous Windows versions), please follow the  
instructions for Windows 2000.  
1. Click Start and Control Panel.  
2. Click the Network and Internet Connections icon and then the Network Connections icon.  
3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using,  
and select the Properties option.  
4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP), and click  
the Properties button. Make sure that Obtain an IP address automatically and Obtain DNS server  
address automatically are selected.  
B. Open a command prompt.  
•
For Windows 98 and Millennium, click Start and Run. In the Open field, type command. Press the  
Enter key or click the OK button.  
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•
For Windows 2000 and XP, click Start and Run. In the Open field, type cmd. Press the Enter key or  
click the OK button.  
C. In the command prompt, type ping 192.168.1.1 and press the Enter key.  
•
If you get a reply, the computer is communicating with the Router.  
•
If you do NOT get a reply, check the cable, and make sure Obtain an IP address automatically is  
selected in the TCP/IP settings for your Ethernet adapter.  
D. In the command prompt, type ping followed by your Internet IP address and press the Enter key. The  
Internet IP Address can be found in the web interface of the Router. For example, if your Internet IP  
address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key.  
•
If you get a reply, the computer is connected to the Router.  
•
If you do NOT get a reply, try the ping command from a different computer to verify that your original  
computer is not the cause of the problem.  
E. In the command prompt, type ping www.linksys.com and press the Enter key.  
•
If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the  
ping command from a different computer to verify that your original computer is not the cause of the  
problem.  
•
If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a  
different computer to verify that your original computer is not the cause of the problem.  
3. I am not getting an IP address on the Internet with my Internet connection.  
A. Refer to “Problem #2, I want to test my Internet connection” to verify that you have connectivity.  
B. If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix E:  
Finding the MAC Address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address  
of your Ethernet adapter onto the Router, see the MAC Address Clone section of “Chapter 6: Setting Up  
and Configuring the Router” for details.  
C. Make sure you are using the right Internet settings. Contact your ISP to see if your Internet connection  
type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Basic  
Setup section of “Chapter 6: Setting Up and Configuring the Router” for details on Internet Connection  
Type settings.  
D. Make sure you use the right cable. Check to see if the Internet LED is solidly lit.  
E. Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port.  
Verify that the Status page of the Router’s Web-based Utility shows a valid IP address from your ISP.  
F. Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router,  
cable/DSL modem, and computer. Check the System Summary tab of the Router’s Web-based Utility to  
see if you get an IP address.  
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4. I am not able to access the Router’s Web-based Utility Setup page.  
A. Refer to “Problem #2, I want to test my Internet connection” to verify that your computer is properly  
connected to the Router.  
B. Refer to “Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” to verify that  
your computer has an IP Address, Subnet Mask, Gateway, and DNS.  
C. Set a static IP address on your system; refer to “Problem #1: I need to set a static IP address.”  
D. Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE  
users).”  
5. I can’t get my Virtual Private Network (VPN) to work through the Router.  
Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router, and go to  
the VPN => VPN Pass Through tab. Make sure you have IPsec passthrough and/or PPTP passthrough  
enabled.  
VPNs that use IPSec with the ESP (Encapsulation Security Payload known as protocol 50) authentication will  
work fine. At least one IPSec session will work through the Router; however, simultaneous IPSec sessions  
may be possible, depending on the specifics of your VPNs.  
VPNs that use IPSec and AH (Authentication Header known as protocol 51) are incompatible with the Router.  
AH has limitations due to occasional incompatibility with the NAT standard.  
Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and  
your local IP address. For example, if your VPN server assigns an IP address 192.168.1.X (X is a number from  
1 to 254) and your local LAN IP address is 192.168.1.X (X is the same number used in the VPN IP address), the  
Router will have difficulties routing information to the right location. If you change the Router’s IP address to  
192.168.2.1, that should solve the problem. Change the Router’s IP address through the Basic Setup tab of  
the Web-based Utility. If you assigned a static IP address to any computer or network device on the network,  
you need to change its IP address accordingly to 192.168.2.Y (Y being any number from 1 to 254). Note that  
each IP address must be unique within the network.  
Your VPN may require port 500/UDP packets to be passed to the computer that is connecting to the IPSec  
server. Refer to “Problem #7, I need to set up online game hosting or use other Internet applications” for  
details.  
Check the Linksys website at www.linksys.com for more information.  
6. I need to set up a server behind my Router.  
To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using.  
For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and  
port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the  
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documentation provided with the server you installed. Follow these steps to set up port forwarding through  
the Router’s Web-based Utility. We will be setting up web, ftp, and mail servers.  
A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go  
to the Firewall => Single Port Forwarding tab.  
B. Enable one of the pre-defined applications in the Table or you can add or modify existing entries for your  
application.  
C. Enter the IP Address of the server that you want the Internet users to access. For example, if the web  
server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check  
“Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an  
IP address. Then check the Enable checkbox for the entry. Consider the examples below:  
Application  
Web server  
Start and End  
80 to 80  
Protocol  
Both  
IP Address  
Enable  
192.168.1.100  
192.168.1.101  
192.168.1.102  
192.168.1.102  
X
X
X
X
FTP server  
21 to 21  
TCP  
SMTP (outgoing)  
POP3 (incoming)  
25 to 25  
Both  
110 to 110  
Both  
When you have completed the configuration, click the Save Settings button.  
7. I need to set up online game hosting or use other Internet applications.  
If you want to play online games or use Internet applications, most will work without doing any port  
forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet  
application. This would require you to set up the Router to deliver incoming packets or data to a specific  
computer. This also applies to the Internet applications you are using. The best way to get the information on  
what port services to use is to go to the website of the online game or application you want to use. Follow  
these steps to set up online game hosting or use a certain Internet application:  
A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go  
to the Firewall => Port Range Forwarding tab.  
B. Enter the Service Application Name, Range of Port used by this Application, and Layer 4 Protocol used by  
this Application to the Table.  
C. Enter the IP Address of the server that you want the Internet users to access. For example, if the web  
server’s Ethernet adapter IP address is 192.168.1.100, you would enter 100 in the field provided. Check  
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“Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an  
IP address. Then check the Enable checkbox for the entry. Consider the examples below:  
Application  
UT  
Start and End  
7777 to 27900  
27015 to 27015  
5631 to 5631  
500 to 500  
Protocol  
Both  
IP Address  
Enabled  
192.168.1.100  
192.168.1.105  
192.168.1.102  
192.168.1.100  
X
X
X
X
Halflife  
Both  
PC Anywhere  
VPN IPSEC  
UDP  
UDP  
D. Configure as many entries as you like.  
When you have completed the configuration, click the Save Settings button.  
8. I can’t get the Internet game, server, or application to work.  
If you are having difficulties getting any Internet game, server, or application to function properly, consider  
exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an  
application requires too many ports or when you are not sure which port services to use. Make sure you  
disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority  
over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding settings.  
If the port number that the data enters from does not have port forwarding, then the Router will send the data  
to whichever PC or network device you set for DMZ hosting.) Follow these steps to set DMZ hosting:  
A. Access the Router’s Web-based Utility by going to http://192.168.1.1 or the IP address of the Router. Go  
to the Firewall => Single Port Forwarding tab.  
B. Disable or remove the entries you have entered for forwarding. Keep this information in case you want to  
use it at a later time.  
C. Go to the Setup => DMZ tab.  
D. Enter the Ethernet adapter’s IP address of the computer you want exposed to the Internet. This will bypass  
the NAT security for that computer. Please refer to “Appendix E: Finding the MAC Address and IP Address  
for Your Ethernet Adapter” for details on getting an IP address.  
Once completed with the configuration, click the Save Settings button.  
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9. I forgot my password, or the password prompt always appears when saving settings to the Router.  
Reset the Router to factory defaults by pressing the Reset button for ten seconds and then releasing it. If you  
are still getting prompted for a password when saving settings, then perform the following steps:  
A. Access the Router’s web interface by going to http://192.168.1.1 or the IP address of the Router. Enter  
the default password admin, and click the Administration => Management tab.  
B. Enter the old password in the Old Password field.  
C. Enter a different password in the New Password field, and enter the new password in the Confirm New  
Password field to confirm the password.  
D. Click the Save Settings button.  
10.I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.  
If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for  
the Internet connection, the computer does not need any proxy settings to gain access. Please follow these  
directions to verify that you do not have any proxy settings and that the browser you use is set to connect  
directly to the LAN.  
For Microsoft Internet Explorer 5.0 or higher:  
A. Click Start, Settings, and Control Panel. Double-click Internet Options.  
B. Click the Connections tab.  
C. Click the LAN settings button and remove anything that is checked.  
D. Click the OK button to go back to the previous screen.  
E. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.  
For Netscape 4.7 or higher:  
A. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies.  
B. Make sure you have Direct connection to the Internet selected on this screen.  
C. Close all the windows to finish.  
11.To start over, I need to set the Router to factory default.  
Hold the Reset button for up to 30 seconds and then release it. This will return the password, forwarding, and  
other settings on the Router to the factory default settings. In other words, the Router will revert to its original  
factory configuration.  
12.I need to upgrade the firmware.  
In order to upgrade the firmware with the latest features, you need to go to the Linksys website and download  
the latest firmware at www.linksys.com. Follow these steps:  
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A. Go to the Linksys website at http://www.linksys.com and download the latest firmware. Select the  
Router from the pull-down menu and choose the firmware from the options.  
B. Extract the firmware file on your computer.  
C. To upgrade the firmware, follow the steps in the Upgrade section found in “Chapter 6: Setting Up and  
Configuring the Router”.  
13.The firmware upgrade failed.  
The upgrade could have failed for a number of reasons. Follow these steps to upgrade the firmware:  
A. Use the Linksys TFTP program to upgrade the firmware. Go to the Linksys website at  
http://www.linksys.com and download the TFTP program, which will be listed with the firmware.  
B. Set a static IP address on the PC; refer to “Problem #1, I need to set a static IP address.” Use the following  
IP address settings for the computer you are using:  
IP Address: 192.168.1.50  
Subnet Mask: 255.255.255.0  
Gateway: 192.168.1.1  
C. Perform the upgrade using the TFTP utility.  
If the firmware upgrade failed, the Router will still work using its current firmware.  
14.My DSL service’s PPPoE is always disconnecting.  
PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a  
period of inactivity, just like a normal phone dial-up connection to the Internet. There is a setup option to  
“keep alive” the connection. This may not always work, so you may need to re-establish connection  
periodically.  
A. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the  
Router.  
B. Enter the password, if asked. (The default password is admin.)  
C. On the Setup => WAN tab, select the option Keep Alive, and set the Redial Period option at 20 (seconds).  
D. Click the Save Settings button.  
If the connection is lost again, follow steps E and F to re-establish connection.  
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15.I can't access my email, web, or VPN, or I am getting corrupted data from the Internet.  
The Maximum Transmission Unit (MTU) setting may need to be adjusted. By default, the MTU is set at 1500.  
For most DSL users, it is strongly recommended to use MTU 1492. If you are having some difficulties, perform  
the following steps:  
A. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the  
Router.  
B. Enter the password, if asked. (The default password is admin.)  
C. Go to Setup => WAN tab.  
D. Look for the MTU option, and select Enable. In the Size field, enter 1492.  
E. Click the Save Settings button to continue.  
If your difficulties continue, change the Size to different values. Try this list of values, one value at a time, in  
this order, until your problem is solved:  
1462  
1400  
1362  
1300  
16.I need to use port triggering.  
Port triggering looks at the outgoing port services used and will trigger the Router to open a specific incoming  
port, depending on which port an Internet application uses. Follow these steps:  
A. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the  
Router.  
B. Enter the password, if asked. (The default password is admin.)  
C. Click the Firewall => Port Range Triggering tab.  
D. Enter any name you want to use for the Application Name.  
E. Enter the Start and End Ports of the Triggered Port Range. Check with your Internet application provider  
for more information on which outgoing port services it is using.  
F. Enter the Start and End Ports of the Forwarded Port Range. Check with your Internet application provider  
for more information on which incoming port services are required by the Internet application.  
Once completed with the configuration, click the Save Settings button.  
17.When I enter a URL or IP address, I get a time-out error or am prompted to retry.  
• Check if other PCs work. If they do, ensure that your workstation’s IP settings are correct (IP Address,  
Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem.  
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• If the PCs are configured correctly, but still not working, check the Router. Ensure that it is connected and  
powered on. Connect to it and check its settings. (If you cannot connect to it, check the LAN and power  
connections.)  
• If the Router is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is  
working correctly. You can remove the Router to verify a direct connection.  
• Manually configure the TCP/IP with a DNS address provided by your ISP.  
• Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet  
Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is  
set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy.  
Make sure that Netscape Navigator is set to Direct connection to the Internet.  
18.I’m trying to access the Router’s Web-based Utility, but I do not see the login screen. Instead, I see a  
screen saying, “404 Forbidden.”  
If you are using Windows Explorer, perform the following steps until you see the Web-based Utility’s login  
screen (Netscape Navigator will require similar steps):  
A. Click File. Make sure Work Offline is NOT checked.  
B. Press CTRL + F5. This is a hard refresh, which will force Windows Explorer to load new webpages, not  
cached ones.  
C. Click Tools. Click Internet Options. Click the Security tab. Click the Default level button. Make sure the  
security level is Medium or lower. Then click the OK button.  
Frequently Asked Questions  
What is the maximum number of IP addresses that the Router will support?  
The Router will support up to 253 IP addresses if the subnetmask is set to 255.255.255.0.  
Is IPSec Passthrough supported by the Router?  
Yes, enable or disable IPSec Passthrough on the VPN => VPN Pass Through tab.  
Where is the Router installed on the network?  
In a typical environment, the Router is installed between the cable/DSL modem and the LAN. Plug the Router into  
the cable/DSL modem’s Ethernet port.  
Does the Router support IPX or AppleTalk?  
No. TCP/IP is the only protocol standard for the Internet and has become the global standard for communications.  
IPX, a NetWare communications protocol used only to route messages from one node to another, and AppleTalk, a  
communications protocol used on Apple and Macintosh networks, can be used for LAN to LAN connections, but  
those protocols cannot connect from the Internet to the LAN.  
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What is Network Address Translation and what is it used for?  
Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that  
is sent out to the Internet. This adds a level of security since the address of a PC connected to the private LAN is  
never transmitted on the Internet. Furthermore, NAT allows the Router to be used with low cost Internet accounts,  
such as DSL or cable modems, when only one TCP/IP address is provided by the ISP. The user may have many  
private addresses behind this single address provided by the ISP.  
Does the Router support any operating system other than Windows 98, Millennium, 2000, or XP?  
Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of  
any non-Windows operating systems.  
I set up an Unreal Tournament Server, but others on the LAN cannot join. What do I need to do?  
If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN  
computers and forward ports 7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. You can  
also use a port forwarding range of 7777 to 27900. If you want to use the UT Server Admin, forward another port  
(8080 usually works well but is used for remote admin. You may have to disable this.), and then in the  
[UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 (to match the mapped port above) and  
ServerName to the IP assigned to the Router from your ISP.  
Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP  
address?  
It depends on which network game or what kind of game server you are using. For example, Unreal Tournament  
supports multi-login with one public IP.  
How do I get Half-Life: Team Fortress to work with the Router?  
The default client port for Half-Life is 27005. The computers on your LAN need to have “+clientport 2700x” added  
to the HL shortcut command line; the x would be 6, 7, 8, and on up. This lets multiple computers connect to the  
same server. One problem: Version 1.0.1.6 won’t let multiple computers with the same CD key connect at the  
same time, even if on the same LAN (not a problem with 1.0.1.3). As far as hosting games, the HL server does not  
need to be in the DMZ. Just forward port 27015 to the local IP address of the server computer.  
How can I block corrupted FTP downloads?  
If you are experiencing corrupted files when you download a file with your FTP client, try using another FTP  
program.  
The web page hangs; downloads are corrupt, or nothing but junk characters are being displayed on the  
screen. What do I need to do?  
Force your Ethernet adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate” feature of your  
Ethernet adapter as a temporary measure. (Please look at the Network Control Panel in your Ethernet adapter’s  
Appendix A: Troubleshooting  
Frequently Asked Questions  
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Advanced Properties tab.) Make sure that your proxy setting is disabled in the browser. Check our website at  
www.linksys.com for more information.  
If all else fails in the installation, what can I do?  
Reset the Router by holding down the Reset button for ten seconds. Reset your cable or DSL modem by powering  
the unit off and then on. Obtain and flash the latest firmware release that is readily available on the Linksys  
website, www.linksys.com.  
How can I be notified of new Router firmware upgrades?  
All Linksys firmware upgrades are posted on the Linksys website at www.linksys.com, where they can be  
downloaded for free. The Router’s firmware can be upgraded using the Web-based Utility. If the Router’s Internet  
connection is working well, there is no need to download a newer firmware version, unless that version contains  
new features that you would like to use. Downloading a more current version of Router firmware will not enhance  
the quality or speed of your Internet connection, and may disrupt your current connection stability.  
Will the Router function in a Macintosh environment?  
Yes, but the Router’s setup pages are accessible only through Internet Explorer 5.0 or Netscape Navigator 5.0 or  
higher for Macintosh.  
I am not able to get the web configuration screen for the Router. What can I do?  
You may have to remove the proxy settings on your Internet browser, e.g., Netscape Navigator or Internet  
Explorer. Or remove the dial-up settings on your browser. Check with your browser documentation, and make  
sure that your browser is set to connect directly and that any dial-up is disabled. Make sure that your browser is  
set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and  
then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape  
Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct  
connection to the Internet.  
What is DMZ Hosting?  
Demilitarized Zone (DMZ) allows one IP address (computer) to be exposed to the Internet. Some applications  
require multiple TCP/IP ports to be open. It is recommended that you set your computer with a static IP if you  
want to use DMZ Hosting. To get the LAN IP address, see “Appendix E: Finding the MAC Address and IP Address  
for Your Ethernet Adapter.”  
If DMZ Hosting is used, does the exposed user share the public IP with the Router?  
No.  
Does the Router pass PPTP packets or actively route PPTP sessions?  
The Router allows PPTP packets to pass through.  
Appendix A: Troubleshooting  
Frequently Asked Questions  
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Is the Router cross-platform compatible?  
Any platform that supports Ethernet and TCP/IP is compatible with the Router.  
How many ports can be simultaneously forwarded?  
Theoretically, the Router can establish 4,000 sessions at the same time, but you can only forward 30 ranges of  
ports.  
Does the Router replace a modem? Is there a cable or DSL modem in the Router?  
No, this version of the Router must work in conjunction with a cable or DSL modem.  
Which modems are compatible with the Router?  
The Router is compatible with virtually any cable or DSL modem that supports Ethernet.  
What is the maximum number of VPN sessions allowed by the Router?  
The maximum number depends on many factors. At least one IPSec session will work through the Router;  
however, simultaneous IPSec sessions may be possible, depending on the specifics of your VPNs.  
How can I check whether I have static or DHCP IP addresses?  
Ask your ISP to find out.  
How do I get mIRC to work with the Router?  
Under the Firewall => Single Port Forwarding tab, set port forwarding to 113 for the PC on which you are using  
mIRC.  
If your questions are not addressed here, refer to the Linksys website, www.linksys.com.  
Appendix A: Troubleshooting  
Frequently Asked Questions  
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Appendix B: Using the Linksys QuickVPN Software for  
Windows 2000 or XP  
Overview  
The Linksys Wireless-N Gigabit Security Router with VPN offers a free QuickVPN software program for computers  
running Windows 2000 or XP. (Computers running other operating systems will have to use a third-party VPN  
software program.) This guide describes how to install and use the Linksys QuickVPN software.  
vpn (virtual private network): a security  
measure to protect data as it leaves one  
network and goes to another over the Internet.  
Before You Begin  
software: instructions for the computer.  
The QuickVPN software program only works with a 4-Port Gigabit Security Router with VPN that is properly  
configured to accept a QuickVPN connection. Follow these instructions for configuring the VPN client settings for  
the Router:  
1. Click the VPN tab.  
2. Click the VPN Client Accounts tab.  
3. Enter the username in the Username field.  
4. Enter the password in the Password field, and enter it again in the Re-enter to confirm field.  
5. Click the Add/Save button.  
6. Click the Active checkbox for VPN Client No. 1.  
Click the Save Settings button.  
Figure B-1: VPN Client Accounts Screen  
Appendix B: Using the Linksys QuickVPN Software for Windows 2000 or XP  
Overview  
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Installing the Linksys QuickVPN Software  
Installing from the CD-ROM  
1. Click Install QuickVPN and follow the on-screen instructions.  
Downloading and Installing from the Internet  
1. Go to www.linksys.com and select Products.  
2. Click Business Solutions.  
3. Click Router/VPN Solutions.  
4. Click RVS4000.  
5. Click Linksys QuickVPN Utility in the More Information section.  
6. Save the zip file to your PC, and extract the .exe file.  
7. Double-click the .exe file, and follow the on-screen instructions. Then proceed to the next section, “Using the  
Linksys QuickVPN Software.”  
Appendix B: Using the Linksys QuickVPN Software for Windows 2000 or XP  
Installing the Linksys QuickVPN Software  
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Using the Linksys QuickVPN Software  
NOTE: You can change your password only if you have been granted that privilege by your system  
administrator.  
Figure B-2: QuickVPN  
Desktop Icon  
Figure B-3: QuickVPN Tray  
Icon - No Connection  
1. Double-click the Linksys QuickVPN software icon on your desktop or in the system tray.  
2. The login screen will appear. Enter a name for your profile.  
Then enter the User Name and Password you have been assigned.  
In the Server Address field, enter the IP address or domain name of the Wireless-G VPN Router with  
RangeBooster. To save this profile, click the Save button. Multiple profiles can be set up if you want to  
establish a tunnel to multiple sites. Note that only one tunnel can be active at a time. To delete this profile,  
click the Delete button. For information, click the Help button.  
Figure B-4: QuickVPN Software - Profile  
Figure B-5: Connecting  
3. To begin your QuickVPN connection, click the Connect button and the Connecting, Activating Policy, and  
Verifying Network screens appear.  
Figure B-6: Activating Policy  
Figure B-7: Verifying Network  
Appendix B: Using the Linksys QuickVPN Software for Windows 2000 or XP  
Using the Linksys QuickVPN Software  
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4. When your QuickVPN connection is established, the status screen will appear, and the QuickVPN tray icon will  
turn green. It will display the IP address of the remote end of the VPN tunnel, the time and date the VPN tunnel  
began, and the total length of time the VPN tunnel has been active.  
To terminate the VPN tunnel, click the Disconnect button. If you want to change your password, click the  
Change Password button. For information, click the Help button.  
Figure B-8: QuickVPN Software - Status  
5. If you clicked the Change Password button and have permission to change your own password, you will see  
the Connect Virtual Private Connection screen. Enter your password in the Old Password field. Enter your new  
password in the New Password field. Then enter the new password again in the Confirm New Password field.  
Click the OK button to save your new password. Click the Cancel button to cancel your change. For  
information, click the Help button.  
Figure B-9: QuickVPN Tray  
Icon - Connection  
Figure B-10: QuickVPN Tray  
Icon - No Connection  
Figure B-11: QuickVPN Software - Change Password  
Appendix B: Using the Linksys QuickVPN Software for Windows 2000 or XP  
Using the Linksys QuickVPN Software  
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Appendix C: Configuring a Gateway-to-Gateway IPSec  
Tunnel  
Overview  
This appendix explains how to configure an IPSec VPN tunnel between two VPN Routers by example. Two PCs are  
used to test the liveliness of the tunnel. You can think of the VPN Router1, Internet, VPN Router2 as a big virtual  
router that connects PC1 on LAN1 and PC2 on LAN2.  
PC2  
PC1  
VPN Router2  
VPN Router1  
Figure C-1: Diagram of Gateway-to-Gateway VPN Tunnel  
Before You Begin  
The following is a list of equipment you need:  
•
•
Two Windows desktop PCs (each PC will be connected to a VPN Router)  
Two VPN Routers that are both connected to the Internet  
NOTE: Each computer must have a network  
adapter installed.  
Appendix C: Configuring a Gateway-to-Gateway IPSec Tunnel  
Overview  
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Configuring the VPN Settings for the VPN Routers  
Configuring VPN Router 1  
Follow these instructions for the first VPN Router, designated VPN Router 1. The other VPN Router is designated  
VPN Router 2.  
1. Launch the web browser for a networked PC, designated PC 1.  
2. Enter the VPN Router’s local IP address in the Address field (default is 192.168.1.1). Then press Enter.  
3. A password request page will appear. (Non-Windows XP users will see a similar screen.) Complete the User  
Name and Password fields (admin is the default user name and password). Then click the OK button.  
Figure C-2: Login Screen  
4. Click the VPN tab.  
5. Click the IPSec VPN tab.  
6. For the VPN Tunnel setting, select Enabled.  
7. Enter a name in the Tunnel Name field.  
8. For the Local Secure Group, select Subnet. Enter VPN Router 1’s local network settings in the IP Address and  
Mask fields.  
9. For the Remote Secure Group, select Subnet. Enter VPN Router 2’s local network settings in the IP Address  
and Mask fields. Note that the subnet of Router 2 must be different than the subnet of Router 1.  
10. For the Remote Secure Gateway, select IP Addr. Enter VPN Router 2’s WAN IP address in the IP Address field.  
11. Click the Save Settings button.  
Figure C-3: VPN - IPsec VPN Configuration  
Appendix C: Configuring a Gateway-to-Gateway IPSec Tunnel  
Configuring the VPN Settings for the VPN Routers  
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Configuring VPN Router 2  
Follow similar instructions for VPN Router 2.  
1. Launch the web browser for a networked PC, designated PC 2.  
2. Enter the VPN Router’s local IP address in the Address field (default is 192.168.1.1). Then press Enter.  
3. A password request page will appear. (Non-Windows XP users will see a similar screen.) Complete the User  
Name and Password fields (admin is the default user name and password). Then click the OK button.  
4. If the LAN IP address is still the default one, change it to 172.168.1.1 and save the setting.  
5. Click the VPN tab.  
6. Click the IPSec VPN tab.  
7. For the VPN Tunnel setting, select Enabled.  
8. Enter a name in the Tunnel Name field.  
9. For the Local Secure Group, select Subnet. Enter VPN Router 2’s local network settings in the IP Address and  
Mask fields.  
10. For the Remote Secure Group, select Subnet. Enter VPN Router 1’s local network settings in the IP Address  
and Mask fields.  
11. For the Remote Secure Gateway, select IP Addr. Enter VPN Router 1’s WAN IP address in the IP Address field.  
12. Click the Save Settings button.  
Appendix C: Configuring a Gateway-to-Gateway IPSec Tunnel  
Configuring the VPN Settings for the VPN Routers  
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Configuring the Key Management Settings  
Configuring VPN Router 1  
Following these instructions for VPN Router 1.  
1. On the IPSec VPN screen, select 3DES from the Encryption drop-down menu.  
2. Select MD5 from the Authentication drop-down menu.  
3. Keep the default Key Exchange Method, Auto(IKE).  
4. Select Pre-Shared Key, and enter a string for this key., e.g. 13572468.  
5. For the PFS setting, select Enabled.  
6. If you need more detailed settings, click the Advanced Settings button. Otherwise, click the Save Settings  
button and proceed to the next section, “Configuring VPN Router 2.”  
7. On the Advanced VPN Tunnel Setup screen, keep the default Operation Mode, Main.  
8. For Phase 1, select 3DES from the Encryption drop-down menu.  
9. Select MD5 from the Authentication drop-down menu.  
10. Select 1024-bit from the Group drop-down menu.  
11. Enter 3600 in the Key Life Time field.  
Figure C-4: Advanced IPsec VPN Tunnel Settings  
12. For Phase 2, the Encryption, Authentication, and PFS settings were set on the VPN screen.  
Select 1024-bit from the Group drop-down menu.  
13. Keep the default Key Life Time value, 28800.  
14. Click the Save Settings button on the Advanced VPN Tunnel Setup screen.  
15. Click the Save Settings button on the IPSec VPN screen.  
Appendix C: Configuring a Gateway-to-Gateway IPSec Tunnel  
Configuring the Key Management Settings  
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Configuring VPN Router 2  
For VPN Router 2, follow the same instructions in the previous section, “Configuring VPN Router 1.”  
Configuring PC 1 and PC 2  
1. Set PC 1 and PC 2 to be DHCP clients (refer to Windows Help for more information).  
2. Verify that PC 1 and PC 2 can ping each other (refer to Windows Help for more information).  
If the computers can ping each other, then you know the VPN tunnel is configured correctly. You can select  
different algorithms for the encryption, authentication, and other key management settings for VPN Routers 1 and  
2. Refer to the previous section, “Configuring the Key Management Settings,” for details.  
Congratulations! You have successfully configured a VPN tunnel between two VPN Routers.  
Appendix C: Configuring a Gateway-to-Gateway IPSec Tunnel  
Configuring PC 1 and PC 2  
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Appendix D: Finding the MAC Address and IP Address for  
Your Ethernet Adapter  
This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC  
address cloning feature of the Router. You can also find the IP address of your computer’s Ethernet adapter. This  
IP address is used for the Router’s filtering, forwarding, and/or DMZ features. Follow the steps in this appendix to  
find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.  
Windows 98 or Me Instructions  
1. Click Start and Run. In the Open field, enter winipcfg. Then press the Enter key or the OK button.  
2. When the IP Configuration screen appears, select the Ethernet adapter you have connected to the Router via a  
CAT 5 Ethernet network cable. See Figure D-1.  
3. Write down the Adapter Address as shown on your computer screen (see Figure D-2). This is the MAC address  
for your Ethernet adapter and is shown as a series of numbers and letters.  
Figure D-1: IP Configuration Screen  
The MAC address/Adapter Address is what you will use for MAC address cloning or MAC filtering.  
The example in Figure D-2 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may  
show something different.  
NOTE: The MAC address is also called the Adapter Address.  
Windows 2000 or XP Instructions  
1. Click Start and Run. In the Open field, enter cmd. Press the Enter key or click the OK button.  
2. At the command prompt, enter ipconfig /all. Then press the Enter key.  
Figure D-2: MAC Address/Adapter Address  
Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter  
Windows 98 or Me Instructions  
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3. Write down the Physical Address as shown on your computer screen (Figure D-3); it is the MAC address for  
your Ethernet adapter. This appears as a series of numbers and letters.  
The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering.  
NOTE: The MAC address is also called the Physical Address.  
The example in Figure D-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may  
show something different.  
Figure D-3: MAC Address/Physical Address  
For the Router’s Web-based Utility  
For MAC address cloning, enter the MAC Address in the MAC Address field or select Clone My PCs MAC. See  
Figure D-4.  
Click Save Settings to save the MAC Cloning settings or click the Cancel Changes button to undo your changes.  
Figure D-4: MAC Address Clone  
Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter  
For the Router’s Web-based Utility  
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Appendix E: Glossary  
Adapter - A device that adds network functionality to your PC.  
AES (Advanced Encryption Standard) - A security method that uses symmetric 128-bit block data encryption.  
Backbone - The part of a network that connects most of the systems and networks together, and handles the  
most data.  
Bandwidth - The transmission capacity of a given device or network.  
Beacon Interval - Data transmitted on your wireless network that keeps the network synchronized.  
Bit - A binary digit.  
Boot - To start a device and cause it to start executing instructions.  
Bridge - A device that connects different networks.  
Broadband - An always-on, fast Internet connection.  
Browser - An application program that provides a way to look at and interact with all the information on the  
World Wide Web.  
Buffer - A shared or assigned memory area that is used to support and coordinate different computing and  
networking activities so one isn't held up by the other.  
Byte - A unit of data that is usually eight bits long  
Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the  
Internet.  
CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) - A method of data transfer that is used to prevent  
data collisions.  
Daisy Chain - A method used to connect devices in a series, one after the other.  
Database - A collection of data that is organized so that its contents can easily be accessed, managed, and  
updated.  
Appendix E: Glossary  
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DDNS (Dynamic Domain Name System) - Allows the hosting of a website, FTP server, or e-mail server with a  
fixed domain name (e.g., www.xyz.com) and a dynamic IP address.  
Default Gateway - A device that forwards Internet traffic from your local area network.  
DHCP (Dynamic Host Configuration Protocol) - A networking protocol that allows administrators to assign  
temporary IP addresses to network computers by “leasing” an IP address to a user for a limited amount of time,  
instead of assigning permanent IP addresses.  
DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be “seen” from  
the Internet.  
DNS (Domain Name Server) - The IP address of your ISP's server, which translates the names of websites into IP  
addresses.  
Domain - A specific name for a network of computers.  
Download - To receive a file transmitted over a network.  
DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines.  
Dynamic IP Address - A temporary IP address assigned by a DHCP server.  
EAP (Extensible Authentication Protocol) - A general authentication protocol used to control network access.  
Many specific authentication methods work within this framework.  
EAP-PEAP (Extensible Authentication Protocol-Protected Extensible Authentication Protocol) - A mutual  
authentication method that uses a combination of digital certificates and another system, such as passwords.  
EAP-TLS (Extensible Authentication Protocol-Transport Layer Security) - A mutual authentication method that  
uses digital certificates.  
Encryption - Encoding data transmitted in a network.  
Ethernet - A networking protocol that specifies how data is placed on and retrieved from a common transmission  
medium.  
Finger - A program that tells you the name associated with an e-mail address.  
Firewall - A set of related programs located at a network gateway server that protects the resources of a  
network from users from other networks.  
Appendix E: Glossary  
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Firmware - The programming code that runs a networking device.  
Fragmentation -Breaking a packet into smaller units when transmitting over a network medium that cannot  
support the original size of the packet.  
FTP (File Transfer Protocol) - A protocol used to transfer files over a TCP/IP network.  
Full Duplex - The ability of a networking device to receive and transmit data simultaneously.  
Gateway - A device that interconnects networks with different, incompatible communications protocols.  
Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a  
time.  
Hardware - The physical aspect of computers, telecommunications, and other information technology devices.  
HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World  
Wide Web.  
Infrastructure - A wireless network that is bridged to a wired network via an access point.  
IP (Internet Protocol) - A protocol used to send data over a network.  
IP Address - The address used to identify a computer or device on a network.  
IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device.  
IPSec (Internet Protocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer.  
ISP (Internet Service Provider) - A company that provides access to the Internet.  
LAN - The computers and networking products that make up your local network.  
LEAP (Lightweight Extensible Authentication Protocol) - A mutual authentication method that uses a username  
and password system.  
MAC (Media Access Control) Address - The unique address that a manufacturer assigns to each networking  
device.  
Mbps (MegaBits Per Second) - One million bits per second; a unit of measurement for data transmission.  
mIRC - An Internet Relay Chat program that runs under Windows.  
Appendix E: Glossary  
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Multicasting - Sending data to a group of destinations at once.  
NAT (Network Address Translation) - NAT technology translates IP addresses of a local area network to a different  
IP address for the Internet.  
Network - A series of computers or devices connected for the purpose of data sharing, storage, and/or  
transmission between users.  
NNTP (Network News Transfer Protocol) - The protocol used to connect to Usenet groups on the Internet.  
Node - A network junction or connection point, typically a computer or work station.  
Packet - A unit of data sent over a network.  
Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.  
POP3 (Post Office Protocol 3) - A standard mail server commonly used on the Internet.  
Port - The connection point on a computer or networking device used for plugging in cables or adapters.  
Power over Ethernet (PoE) - A technology enabling an Ethernet network cable to deliver both data and power.  
PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication  
(username and password) in addition to data transport.  
PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be  
tunneled through an IP network. This protocol is also used as a type of broadband connection in Europe.  
RADIUS (Remote Authentication Dial-In User Service) - A protocol that uses an authentication server to control  
network access.  
RJ-45 (Registered Jack-45) - An Ethernet connector that holds up to eight wires.  
Router - A networking device that connects multiple networks together.  
RTS (Request To Send) - A networking method of coordinating large packets through the RTS Threshold setting.  
Server - Any computer whose function in a network is to provide user access to files, printing, communications,  
and other services.  
SMTP (Simple Mail Transfer Protocol) - The standard e-mail protocol on the Internet.  
SNMP (Simple Network Management Protocol) - A widely used network monitoring and control protocol.  
Appendix E: Glossary  
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Software - Instructions for the computer. A series of instructions that performs a particular task is called a  
“program”.  
SOHO (Small Office/Home Office) - Market segment of professionals who work at home or in small offices.  
SPI (Stateful Packet Inspection) Firewall - A technology that inspects incoming packets of information before  
allowing them to enter the network.  
Static IP Address - A fixed address assigned to a computer or device that is connected to a network.  
Static Routing - Forwarding data in a network via a fixed path.  
Subnet Mask - An address code that determines the size of the network.  
Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of  
devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an  
electrical circuit.  
TCP (Transmission Control Protocol) - A network protocol for transmitting data that requires acknowledgement  
from the recipient of data sent.  
TCP/IP (Transmission Control Protocol/Internet Protocol) - A set of instructions PCs use to communicate over a  
network.  
Telnet - A user command and TCP/IP protocol used for accessing remote PCs.  
TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that has no directory or password  
capability.  
Throughput - The amount of data moved successfully from one node to another in a given time period.  
Topology - The physical layout of a network.  
TX Rate - Transmission Rate.  
UDP (User Datagram Protocol) - A network protocol for transmitting data that does not require acknowledgement  
from the recipient of the data that is sent.  
Upgrade - To replace existing software or firmware with a newer version.  
Upload - To transmit a file over a network.  
URL (Uniform Resource Locator) - The address of a file located on the Internet.  
Appendix E: Glossary  
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VPN (Virtual Private Network) - A security measure to protect data as it leaves one network and goes to another  
over the Internet.  
WAN (Wide Area Network)- The Internet.  
WINIPCFG - A Windows 98 and Me utility that displays the IP address for a particular networking device.  
Appendix E: Glossary  
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Appendix F: Specifications  
Model  
WRVS4400N  
Standards  
Ports  
IEEE802.11n draft, 802.11g, 802.11b, 802.3u, 802.1X  
10/100/1000 Base-T Ethernet, 12VDC Power  
Buttons  
Cabling Type  
LEDs  
Reset  
UTP CAT 5  
Power, Diag, IPS (Blinks RED - Internal attack,  
Blinks Green - external attack), Wireless, LAN 1-4, Internet  
Wireless  
Radio Transmit Power  
Wireless Securities  
Antenna  
19dBm for 802.11b, 16dBm for 802.11g and 802.11n  
WEP, WPA-Personal, WPA-Enterprise, WPA2-Personal, WPA2-Enterprise  
3 external 2dBi omni-directional antennas, 2x3 MIMO diversity  
Performance  
NAT Throughput  
Setup/Config  
WebUI  
800 Mb/s  
Built in Web UI for Easy browser-based configuration (HTTP/HTTPS)  
SNMP Version 1, 2c  
Management  
SNMP Version  
Appendix F: Specifications  
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Event Logging  
Web F/W upgrade  
Diagnostics  
Security  
Event Logging: Local, Syslog, E-mail Alerts  
Firmware Upgradable Through Web-Browser  
DIAG LED for Flash and RAM failure; Ping Test for network diagnostics  
VPN  
5 QuickVPN Tunnels for remote client access  
5 IPSec Gateway-to-Gateway Tunnels for branch office connectivity  
3DES Encryption  
MD5/SHA1 Authentication  
IPSec NAT-T  
VPN Passthrough of PPTP, L2TP, IPSec  
Access Control  
Firewall  
IP-based ACL, Internet Access Policy Control  
SPI stateful packet inspection firewall  
URL blocking, keyword blocking  
Content Filtering  
IPS (Intrusion Prevention System) IP Sweep Detection, Application Anomaly Detection  
(HTTP, FTP, Telnet, RCP), P2P Control, Instant Messenger Control,  
L3-L4 Protocol (IP, TCP, UDP, ICMP) Normalization, L7 Signature Matching  
Signature Update  
Manual download from the web (Free download for 1 year)  
HTTPS, Username/Password  
Secure Management  
802.1x  
NAT  
Port-based Radius Authentication (EAP-MD5, EAP-PEAP)  
PAT, NAPT, ALG support, NAT Traversal  
QoS  
Prioritization types  
Port-based and Application-based Priority  
Appendix F: Specifications  
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Queues  
4 queues  
Network  
VLAN Support  
DHCP  
Port-based VLAN  
DHCP Server, DHCP Client, DHCP Relay Agent  
DNS Relay, Dynamic DNS (DynDNS, TZO)  
Any host IP address on LAN side  
Static and RIP v1,v2  
DNS  
DMZ  
Routing  
Environmental  
Device Dimensions  
(W x H x D)  
7.8 x 5.16 x 7.8 inches  
198 x 131 x 198 mm  
Weight  
0.99 lbs (0.45kg)  
Power  
12V 1A  
Certification  
Operating Temp.  
Storage Temp.  
Operating Humidity  
Storage Humidity  
FCC class B, CE, ICES-003  
0ºC to 40ºC (32ºF to 104ºF)  
-20ºC to 70ºC (-4ºF to 158ºF)  
10% to 85% Non-Condensing  
5% to 90% Non-Condensing  
Appendix F: Specifications  
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Appendix G: Warranty Information  
LIMITED WARRANTY  
Linksys warrants to You that, for a period of three years (the “Warranty Period”), your Linksys Product will be substantially  
free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys' entire liability under  
this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any  
rebates. This limited warranty extends only to the original purchaser.  
If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return  
Authorization Number, if applicable. BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING. If You are  
requested to return the Product, mark the Return Authorization Number clearly on the outside of the package and include a  
copy of your original proof of purchase. RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE. You  
are responsible for shipping defective Products to Linksys. Linksys pays for UPS Ground shipping from Linksys back to You  
only. Customers located outside of the United States of America and Canada are responsible for all shipping and handling  
charges.  
ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED  
TO THE DURATION OF THE WARRANTY PERIOD. ALL OTHER EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND  
WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF NON-INFRINGEMENT, ARE DISCLAIMED. Some jurisdictions do not  
allow limitations on how long an implied warranty lasts, so the above limitation may not apply to You. This warranty gives  
You specific legal rights, and You may also have other rights which vary by jurisdiction.  
This warranty does not apply if the Product (a) has been altered, except by Linksys, (b) has not been installed, operated,  
repaired, or maintained in accordance with instructions supplied by Linksys, or (c) has been subjected to abnormal  
physical or electrical stress, misuse, negligence, or accident. In addition, due to the continual development of new  
techniques for intruding upon and attacking networks, Linksys does not warrant that the Product will be free of  
vulnerability to intrusion or attack.  
TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA, REVENUE OR PROFIT,  
OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, REGARDLESS OF THE THEORY OF  
LIABILITY (INCLUDING NEGLIGENCE), ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT  
(INCLUDING ANY SOFTWARE), EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT  
WILL LINKSYS’ LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT. The foregoing limitations will apply even if  
any warranty or remedy provided under this Agreement fails of its essential purpose. Some jurisdictions do not allow the  
exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to You.  
Please direct all inquiries to: Linksys, P.O. Box 18558, Irvine, CA 92623.  
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Appendix H: Regulatory Information  
FCC Statement  
This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the  
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential  
installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used  
according to the instructions, may cause harmful interference to radio communications. However, there is no guarantee  
that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or  
television reception, which is found by turning the equipment off and on, the user is encouraged to try to correct the  
interference by one or more of the following measures:  
•
•
•
•
Reorient or relocate the receiving antenna  
Increase the separation between the equipment or devices  
Connect the equipment to an outlet other than the receiver's  
Consult a dealer or an experienced radio/TV technician for assistance  
FCC Radiation Exposure Statement  
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment  
should be installed and operated with minimum distance 20cm between the radiator and your body.  
Safety Notices  
Caution: To reduce the risk of fire, use only No.26 AWG or larger telecommunication line cord.  
Do not use this product near water, for example, in a wet basement or near a swimming pool.  
Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightning.  
Industry Canada (Canada)  
This device complies with Canadian ICES-003 and RSS210 rules. Cet appareil est conforme aux normes NMB-003 et  
RSS210 d'Industrie Canada.  
IC Statement  
Operation is subject to the following two conditions:  
1. This device may not cause interference and  
2. This device must accept any interference, including interference that may cause undesired operation of the device.  
Appendix H: Regulatory Information  
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Règlement d’Industry Canada  
Le fonctionnement est soumis aux conditions suivantes :  
1. Ce périphérique ne doit pas causer d'interférences;  
2. Ce périphérique doit accepter toutes les interférences reçues, y compris celles qui risquent d'entraîner un  
fonctionnement indésirable.  
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste Electric and Electronic  
Equipment (WEEE)  
This document contains important information for users with regards to the proper disposal and recycling of Linksys  
products. Consumers are required to comply with this notice for all electronic products bearing the following symbol:  
Appendix H: Regulatory Information  
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Appendix H: Regulatory Information  
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Appendix H: Regulatory Information  
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Appendix H: Regulatory Information  
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For more information, visit www.linksys.com.  
Appendix H: Regulatory Information  
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Appendix I: Contact Information  
Need to contact Linksys?  
Visit us online for information on the latest products and updates  
to your existing products at:  
http://www.linksys.com or  
ftp.linksys.com  
Can't find information about a product you want to buy  
on the web? Do you want to know more about networking  
with Linksys products? Give our advice line a call at:  
Or fax your request in to:  
800-546-5797 (LINKSYS)  
949-823-3002  
If you experience problems with any Linksys product,  
you can call us at:  
800-326-7114  
Don't wish to call? You can e-mail us at:  
[email protected]  
If any Linksys product proves defective during its warranty period,  
you can call the Linksys Return Merchandise Authorization  
department for obtaining a Return Authorization Number at:  
(Details on Warranty and RMA issues can be found in the Warranty  
Information section in this Guide.)  
949-823-3000  
Appendix I: Contact Information  
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